The URL can be used to link to this page

Home My WebLink About2021-03-16 Supplemental Drainage Correspondence 1 j i 45 Franklin Street, 5th Floor aOHLER // Boston, MA 02110 617.849.8040 I i March 8, 2021 North Andover Planning Department 120 Main Street North Andover, MA 01845 Attn: ,lean Enright, Planning Director CLenrigby&northandoverma.gov) Re: Updated Site Plan Set 419 &435 Andover Street North Andover, MA Dear Ms. Enright, On behalf of the applicant, Crosspoint Associates, Inc„ Bohler is providing the latest site development plan set which clarifies the existing lots and property lines which are to remain as part of the project. The following is included herein: • Four(4) full size copies of"Proposed Site Plan Documents" prepared by Bohler, dated October 22, 2020 and revised through March 5, 2021. We trust the above is sufficient for your needs at this time. Should you have any questions or require additional information, please do not hesitate to contact us at(617)849-8040. Sincerely, BOHLER ENGINEERING MA LLC Zachary L. Richards, P.E. Stephen Martorano, P.E. ii l www.BohlerEngineering.com i r �l i '� I i I I I V �^ VI 1` A i I i J 45 Franklin Street, 5th Floor idOHLER /ifBoston, MA 02110 617,849.8040 Crosspoint Associates June 7, 2022 188 Needham Street, Suite 255 Newton, MA 02464 Attn: Jonathan Hueber, Managing Principal Re: North Andover Ventures LLCI Crosspoint Associates Demand Letter 419 &435 Andover Street North Andover, MA Dear Mr, Hueber, At your request and in response to the demand letter issued by the Law Offices of Peter S. Brooks dated June 3, 2022, Bohler has prepared the following findings of fact associated with the stormwater management system design that was approved for the redevelopment project at 419 and 435 Andover Street in North Andover, Massachusetts. li The project was designed to conform to the standards of the Massachusetts Stormwater Handbook (MSH) dated February 2008, the requirements of the North Andover Stormwater Management and Erosion Control Regulations (Chapter 160 of the North Andover Zoning Bylaw)adopted February 15, 2011, and the requirements of the North Andover Stormwater Management and Erosion Control Bylaw (Chapters 165 and 250 of the Bylaw). 1 As a redevelopment project constructed in the Town of North Andover("the Town") requiring a Special Permit, the civil site design associated with the project's application was reviewed and approved by the special permit granting authority(the Planning Board) as well as a third party expert consultant review commissioned by the Town. Horsley Witten Group with an office located at 112 Water Street, 6th Floor in Boston, Massachusetts conducted an expert review of the projects site development plans and stormwater management system calculations. The review process was 24 concluded on June , 2021 by Horsley Witten Group with a determination that the project was fully compliant with the une 24n's local regulations and the standards of the MSH. Specifically, the project's stormwater system has been designed in conformance with both the rules and regulations governing stormwater management by the Town and the State of Massachusetts. The point of ultimate discharge from the project site has not been altered from the site's existing conditions prior to any land disturbance activities under the approved Notice of Decision from the Town dated March 16, 2021 (an evidence photo of this discharge point following a storm event and prior to any construction land disturbance has been provided as an attachment to this letter). The calculations associated with the design of the stormwater management system have shown that the system reduces peak rates of flow to this ultimate discharge point during storm events, provides the required volume of storage for groundwater recharge across the site, and provides an adequate system drawdown release time to alleviate peak rates of discharge flow to the abutting property following larger, less frequent storm events. The stormwater management system has been designed to fully capture the site's runoff, treat the flow by removing total suspended solids (sands and other pollutants)and infiltrate the required stormwater volume in lesser, more frequent storm events (approximately 1-inch of rainfall) at the site which results in an approximate 30% reduction in volume of water reaching the downstream property. www.BohlerEngineering.com BOHLERd We trust the above is sufficient for your needs at this time. Should you have any questions or require additional information, please do not hesitate to contact us at (617) 849-8040. Sincerely, BOHLER QwA Jared Walsh, E.I.T. Stephen Martorano, P.E. www.Boh IerEngi neering.com 6/14/2021 Town of North Andover Mail-419 Andover St-Supplemental Drainage Package Submittal 0� j0 V Jean Enright<Jenright@northandoverrna.gov> Massaeh�s�l� „ ,� 419 Andover St - Supplemental Drainage Package Submittal 1 message Jared Walsh <jwalsh@bohlereng.com> Fri, Jun 11, 2021 at 12:25 PM To: Janet Bernardo<jbernardo@horsleywitten,com>, Jean Enright <Jenright@northandoverma,gov> Cc: Zachary Richards <zrichards@bohlereng.com>, Stephen Martorano <smartorano@bohlereng.com>, "M201047@nf.bohlereng.com" <M201047@nf.bohl ere ng.com>, Rian Kearney<rkearney@coastalconstructioncorp.com>, Dave York<dyork@coastalconstructioncorp.com>, Matt Halvatzes <mhalvatzes@coastalconstructioncorp.com>, Jay McSweeney<jmcsweeney@crosspointassociates,com>, Josh Brandt<jbrandt@crosspointassociates.com>, "Dan Paquette- SCM, LLC The Owner's Representative (dgpaquette@gmail.com)" <dgpaquette@gmail.com>, Kerry McCormack <kmccormack@crosspointassociates.com> Hi Jean and Janet, As discussed, please find like below to our updated plans and drainage submittal for system modifications to address test pit results. Design intent was generally maintained, the system was just split into two separate lower profile systems to provide groundwater separation. Download all files Happy to jump on a quick call and screen share to review together if helpful and run through any questions or concerns. As discussed,we appreciate any ability you have to expedite your review as this has become the critical path for the contractor and they are anxious to got started on the utility work. Thanks in advance and have a great weekend, Jared Jared Walsh Design Engineer 45 Franklin Street, 5th Floor Boston, MA 02110 o 617-849-80401 jwalsh@bohlereng.com www.BohlerEngineering.com BOHLER . Confidentiality Note: This e-mail, and any attachment to It, contains confidential Information Intended only for the use of the designated recipients, which Information may also be privileged. if the reader of this e-mail Is not the Intended recipient, the document has been received In error and any use, review, dissemination, distribution, disclosure or copying of this message Is strictly prohibited. If you have received this e-mail In error,please notify the sender via reply e-mail and Immediately delete this e- mail from your system. https:llm ai l.goog le.com/mall/u/0?ik=7c2off6265&view=pt&search=all&permth id=thread-f°/`3AI702288400274511681&simpl=msg-f0/.3A i 70228840027... 111 i 46 Franklin Street, 5th Floor Boston, MA 02110 BOHLERI517.849.8040 June 10, 2021 Attn: Janet Carter Bernardo, P.E. Horsley Witten Group 112 Water Street, 61' Floor Boston, MA 02109 Cc: Jean Enright, Town of North Andover Planning Director Re: Supplemental Drainage Package for Proposed Commercial Development 419 &435 Andover Street, Forth Andover, MA Dear Mrs, Bernardo, On behalf of the Applicant, Crosspoint Associates, we are pleased to submit the attached Supplemental Drainage Package and supporting materials relative to the proposed commercial development located at 419 &435 Andover Street, North Andover, MA(the"Site"). The attached package addresses drainage system alterations following test pit results witnessed on May 13, 2021 and May 26, 2021 by Bohler in accordance with Special Condition 452 per the Notice of Decision of the Site Plan Review and Parking Special Permit, dated March 16, 2021. Please find the following supporting materials enclosed as a part of the Supplemental Drainage Package: • One (1)full-size copy of the Site Development Plans, prepared by Bohler, dated June 10, 2021; and • One (1) copy of the Supplemental Drainage Package, prepared by Bohler, dated June 10, 2021. Should you have any questions or require additional information, please do not hesitate to contact by telephone at(617) 849-8040 or via email at zrichards@bohlereng.com. Very truly yours, BOHLER Zachary Richards, P.E. www.BohlerEnglneering.com SUPPLEMENTAL DRAINAGE PACKAGE For PROPOSED COMMERCIAL REDEVELOPMENT 419 &43S Andover Street North Andover, Massachusetts Submitted to: North Andover Planning Department 120 Main Street North Andover, MA 01845 Attn: Jean Enright, Planning Director Proponent: Crosspoint Associates, Inc. 188 Needham Street, Suite 255 Newton, MA 02464 Prepared by: BO " LE.RI 45 Franklin Street, Floor 5 Boston, MA 02110 ,tune 10, 2021 #M201047 SECTION 1: DRAINAGE CALCULATIONS Drainage Summary This supplemental drainage package is being provided in support of drainage modifications to address the recent results of soil testing at the site. The soil testing results indicated higher groundwater at the site than originally estimated, as shown in Section 2 of the package.As a result, the proposed infiltration system has been revised to a lower profile system and has been divided into two infiltration systems, to account for the high groundwater and elevation challenges at the site. The systems have been sized proportionally for each contributing area and provide a minimum 2 foot separation from the estimated seasonal high groundwater table. Both systems still provide the required TSS removal via the same treatment train (deep sump hooded catch basins and water quality treatment units prior to infiltration). The combined overall volume and water quality volume of the two systems has increased slightly as compared to the approved design, and as supported by the provided calculations. The outlet control structures have also been modified slightly in elevation to support the revised system design, but function in the same manner as the approved design, as supported by the updated HydroCAD models provided. Finally, an updated peak runoff rate summary table has been provided below(Table 1.2)to show that peak rates of runoff are still decreased for all storm events. The previously approved Table 1.1 is also included below for reference. In conclusion, the revised drain system is consistent with the previously approved design and meets all of the stormwater standards. Table 1.1: Peak Runoff Rate Summary (Revision 1 — Previously Approved) f?otnt:of..: 2 Year Storm.: 10;Year Storm 25 Year Storrit ' f QO„-Year Storm 9r�alysis Pre Post i d Pre Post Pre Post Q Pre Post A DP1- ;s 7.39 5.02 —2.37 11.77 11.71 .0.06 15.01 14.56 -0.45 21.98 21.49 —0.49 Table 1.2: Peak Runoff Rate Summary (Revision 2-- Proposed) Poinf of 2 Year Storm 70-Year Storm 25 Year Storm t00`-Year Storm AnalysEs i?re Post © Pre Post a Pare .Past �. . Pre Post.i o. DP1 s 7,39 4.42 -2.97 11.77 11.67 -0.10 16.01 14.77 -0.24 21.98 21,29 -0.69 Table 2.1: Water Quality Volume Summary Design Totat Prov►ded Wafer'. Sysi ern Ib{s) . iteration Quality V0[ume* 1 P 4,062 REV2 1 P, 3P 4,146 *Volume provided below lowest outlet in cubic feet(CF) I Proposed Commercial Development 419&435 Andover Street North Andover,MA Bohler Job Number:M201047 June 10,2021 MA DEP Standard 3: Recharge Volume Calculations Existing Site Impervious Area ac 0.000 .. Proposed Site Impervious Area ac 0A00 Proposed Increase in Site Impervious Area ac 0.000 Recharge Volume Required cf 0 Existing Site Im ervious Area ac 0.000 Proposed Site Impervious Area ac - 0.000 Proposed Increase in Site Impervious Area ac 0.000 Recharge Volume Required(co, 0 Existing Site Im ervious Area ac 2,089 Proposed Site Impervious Area ac 2.223 Proposed Increase in Site Impervious Area ac 0.134 Recharge Volume Required(en, 122 Existing Site Impervious Area ac 0.000 Proposed Site Impervious Area ac 0.000 Proposed Increase in Site Impervious Area ac 0.000 Recharge Volume Required cf 0 F Impervious Area Directed to Infiltration BMP ac 3.223 %Im ervious Directed to Infiltration BMP 100% Ad'ustment Factor 1.00 Chamber System 4,145 Provided c ireater than or Ec jual to Required `Volume provided below lowest outlet in cubic feet(cf) Prepared By: Bohler Engineering 45 Franklin Street, 5th Floor Boston, MA 02127 (617) 849-8040 Proposed Commercial Development 419 &435 Andover Street North Andover, MA Bohler Jot, Number: M201047 June 10,2021 MA DEP Standard 3: Drawdown Time Calculations �' µ.... Volume below outlet pipe (Rv) (c 4,145 Soil Type Sandy Cla 1_oam C . Infiltration rate K * 0.17 Bottom Areas 5914 *Infiltration Rates taken from Rawls Table **Drawdown time= Rv I(K)x(bottom area) Prepared By: Bohler Engineering 45 Franklin Street, 5th Floor Boston, MA 02127 (617) 849-8040 I Proposed Commercial Development 419&435 Andover Street North Andover, MA Bohler Job Number: M201047 June 10,2021 MA DEP Standard 4: Water Quality Volume Calculations h Water Quality Volume runoff(in.)* 1.0 Total Post Development Im ervious Area(so 96,834 *Water Quality volume runoff is equal to 0.5 or 1.0 inches of runoff times the total impervious area of the post development project site. a CDS Treatment Units sized for 1.0 inch Volume >8,069 0 0 0 0 0 0 0 0 Recharge Met *Volume provided below lowest outlet pipe in cubic feet(cf) *Note-Chamber System also providing 4,145 of of WQV Prepared By, Bohler Engineering 45 Franklin Street, 5th Floor Boston, MA 02127 (617) 849-8040 Location Siib6atchmentOR01A A B C D E TSS Removal Starting TSS Amount Remaining BMP' Rate' Load* Removed B*C Load C-D O Deep Sump Hooded Catch O Basllls 0.25 1.00 0.25 0.75 fC Proprietary.Separator 0.80 0.75 0.54 0.115 Subs urfacclnflltratTon Baslr€ 0.80 0.t5 0.72 0.03 O O O N N �-- _ Total TSS Removal = 97% Project: 419&435 AndGv0 Street Prepared By: Bohler Englneering *Equals remaining load from previous BMP(E) Date: 6hono2i which enters the BMP Prepared By: Bohlor Engineering 45 Franklin Stree€,5th Floor Boston,MA 02127 (617)840-8040 Location: SubcatchmentPROIA A B C D P TSS Removal Starting TSS Amount Remaining BMP1 Rate' Load* Removed B*C Load C-D O Beep Sump Hooded Catol3 O Basin.. 0.26 1.00 0.25 0,75 ro f]eap;Surnp Draln Manhole.: 7F y }, 0,26 0.76 '- 0.19 0.66 t0 N N V N Subsurface Infiltration Bashi AN 0.66 0.46 0,11 L O O ... . .......... Qs LL N f N F- Total TSS Removal = 09% ProjeCt. 419&436 Andover Street Prepared By Bohler Engineerlrig 'Equals remaining load from previous BMP(E) Date: 6/1 012 0 2 1 ... .. which enters the BMP Prepared By: Bohier Engineering 45 Frankiin Street,5th Floor Boston,MA 02127 (617)849-8040 Location: Subcatchment PRO1B A B C D E TSS Removal Starting TSS Amount Remaining 13MP1 Rate' Load* Removed B*C Load C-Q Deep Sump FEooded Catch Basins 0.25 1.00 0.25 0.75 tG proprietary Separator0.18 cu Subsurface infiitratlon Bastn 0.80 015 012 0.03 it t.. O o W W Total TSS Removal = 97% Project: 419&435 Andover Street... Prepared By: Sohler Englneering 'Equals remaining load from provious BMP(F) Date; 611012021 which enters the BMP Prepared By: Bohler Engineering 45 Franklin Street,5th Floor Boston,MA 02127 (617)849-8040 MM ff,Elm MMI .. wommim I U AIRMN CN?. M4$ Coosass 019 CID, ool B I.B lot l 10 20155 FA 0.9 ONI Q30 001 02, 6 ag IM 10 M" X3 25 "0 0007 01-11 0— ia 436 o0115 CIM 65 019 00.13 .01 ON 6 �M3l Sa7EV aXI ola 0010 t. 6 'C CC, 12 �555 xh lot a.. HE.PE 002 .7 to,, C. C&I VQ- mo too o" 6% 001 'k 2$000 ONOC cou -M on r�111:wlll, r."',,-% r,---w— co`a 0.143 aL3 alI C.— Ols 0 .4 oll 17 Moo 2 M 1� Q031 HSPE Coll 5.90 753 0Le 03 OLCO M 6 e.6 0, ?R�30 0.10 60 OM 0.95 012 0" Q30 4ba 012 1 -XI 1 2— .0 0`0`5 PSGI Colo tea AC`I PPE —9051 asls 0012 0 50 A a 033 o a ol 2 92 1 9 n ov.2 0— 0.5l5 0.,I6 OW 03l Ul QA o 48 191 12 2690J o 4 Coo ton 0 O.os i,j 6012 056 .101 77 VCM OC6 E. am 030 ll� too 4 aQS7o 07A7 a NO 01 40 .......... 2 Olo) CS 12 W76o Tll]hl 550 1 Gov 11UFG 0012 575 11 RVWTeW) M 0 30 6 12 e*X I'M M2• 54$ 610 C" m) 095 431 Ofbl 03) db2 a31 M 12 ON X.10 77-77— A N",I R55 0.0i 0009 030 00p ON 6 45 all 6 N555 ON&O a30 Otr11 Hl— 0.042 01, C 4 010 0.0 .11 �Xl OCAID 310 0006 H— .10 155 777777 777M7 CUSS Br'6T£V} o OAW. 6 's im 12 0012 lol 7M77 0117 0.95 all 041, to, CLIO 6 40 a" —o' W0, 9012 M 51 050 a. t), 14) 12 Xlv$ 20115 0012 a _"111 all R]ta 0112 7w oN �m o 00 07, 45 1p Is X`$�. :GSM 0 "l o 0 g to o 0", —3 —7 OM a 55 flit 1 �11 oOS m 0 0.010 1 .02 lid CL`Cl I 1� .11 ON 50 too I Colo 001 2 1C, CDSo 0 t2tt 16 O� ON tv 6 192 15 204 50 Mo5 0 Mo 61 1C. QLN 41 uol0 i,,G o6o 0:9 171 CIL77 Ij I.T 11 CDo.2 COO 601 C. a6 0.41 l' iCb y3 N165 S50 CC05 I F.'O 0,010 111 316 4C o—I 0.83 a 44450 15 L'g '0 2 &,1 C131 II55 -489QISS t 4 55 7010$ so� 1;0' -12 It. OS5 ,11 Coll P—O,--R —A j Cd—E,—,o ENGINEEREb SOLUT!Til Purpose: To calculate the water quality flow rate (WQF)over a given site area. In this situation the WQF is derived from the first 1"of runoff from the contributing impervious surface. Reference: Massachusetts Dept. of Environmental Protection Wetlands Program 1 United States Department of Agriculture Natural Resources Conservation Service TR-55 Manual Procedure: Determine unit peak discharge using Figure 1 or 2. Figure 2 is in tabular form so is preferred. Using the tc, read the unit peak discharge (qu)from Figure 1 or Table in Figure 2. qu is expressed in the following units: cfslmi2lwatershed inches (csm/in). Compute Q Rate using the following equation: Q= (qu) (A) (WQV) where: Q =flow rate associated with first V of runoff qu =the unit peak discharge, in csmlin. A= impervious surface drainage area(in square miles) WQV=water quality volume in watershed inches (V in this case) Structure Impv. A tc t' WQV Name acres (Miles) min hr (in) qu (csmfin.) Q (cfs) 0.0003125 `:��G 0 0.100 If 00 774.00 0 13 0.0002031 `6 0 0.100 ;'OQ,.'� 774.00 058..'? 0.0009053 6,.0 0.100 1Q0 774.00 WQI 3 012 0,0001875 6 0 0.100 100 774.00 CDS-2, 0.95 0.0014$44 6 0 0.100 [:QO, .' 774.00 C%ow-NTECH" CI�S ENGINEERED SOLUTIONS CDS ESTIMATED NET ANNUAL SOLIDS LOAD REDUCTION BASED ON THE RATIONAL RAINFALL METHOD 419 & 435 ANDOVER ST NORTH ANDOVER, MA Area 0.20 ac Unit Site Designation CDS 1 Weighted C 019 Rainfall Station# 68 t' 6 min CDS Model 1515-3 CDS Treatment Capacity 1.0 cfs Rainfall Percent Rainfall Cumulative Total Flowrate Treated Flowrate Incremental Intensity_ , o inlhr Volume Rainfall Volume cfs cfs Removal (/a1 0.02 9.3% 9.3% 0.00 0.00 9.1 0.04 9.5% 18.8% 0.01 0.01 9.2 0,06 8.7% 27.5% 0.01 0.01 8.4 0.08 10.1% 37.6% 0.01 0.01 9.7 0.10 7.2% 44.8% 0.02 0.02 6.9 0.12 6.0% 50.8% 0.02 0.02 5.8 0.14 6.3% 57.1% 0.03 0.03 6.0 0.16 5.6% 62.7% 0.03 0.03 5.3 0.18 4.7% 67.4% 0.03 0.03 4.5 0.20 3.6% 71.0% 0.04 0.04 3.4 0.25 8.2% 79.1% 0.05 0.05 7.7 0.50 14.9% 94.0% 0.09 0.09 13.6 0.75 3.2% 97.3% 0.14 0.14 2.8 1.00 1.2% 98.5% 0.18 0.18 1.1 1.50 0.7% 99.2% 0.27 0.27 0.6 2.00 0.8% 100.0% 0.36 0.36 0.6 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 94.5 Removal EfficiencyAdjustment2= 6.5% Predicted %Annual Rainfall Treated= 93.5% Predicted Net Annual Load Removal Efficiency= 88.0% 1 -Based on 10 years of rainfall data from NCDC station 736, Blue Hill, Norfolk County, MA 2 -Reduction due to use of 60-minute data for a site that has a time of concentration less than 30-minutes. C%wo NTE H� �II1111�111 IDS ENGINEERED SOLUTIONS e CDS ESTIMATED NET ANNUAL SOLIDS LOAD REDUCTION BASED ON THE RATIONAL RAINFALL METHOD 419 & 435 ANDOVER ST NORTH ANDOVER, MA Area 0.95 ac Unit Site Designation CDS 2 Weighted C 0.9 Rainfall Station# 68 tr 6 min CDS Model 2015-4 CDS Treatment Capacity 1.4 cfs Rainfall Percent Rainfall Cumulative Total Flowrate Treated Flowrate Incremental Intensity Volume, Rainfall Volume cfs cfs Removal {%) inlhr 0.02 9.3% 9.3% 0.02 0.02 9.0 0.04 9.5% 18.8% 0.03 0.03 9.0 0.06 8.7% 27.5% 0.05 0.05 8.3 0.08 10.1% 37.6% 0.07 0.07 9.5 0.10 7.2% 44.8% 0.09 0.09 6.7 0.12 6.0% 50.8% 0.10 0.10 5.5 0.14 6.3% 57.1% 0.12 0.12 5.8 0.16 5.6% 62.7% 0.14 0.14 5.1 0.18 4.7% 67.4% 0.15 0.15 4.2 0.20 3.6% 71.0% 0.17 0.17 3.2 0.25 8.2% 79.1% 0.21 0.21 7.1 0.50 14.9% 94.0% 0.43 0.43 11.4 0.75 3.2% 97.3% 0.64 0.64 2.1 1.00 12% 98.5% 0.86 0.86 0.7 1.50 0.7% 99.2% 1.28 1.28 0.2 2.00 0.8% 100.0% 1.71 1.40 0.2 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 88.0 Removal Efficiency Adjustment2 = 6.5% Predicted %Annual Rainfall Treated = 93.4% Predicted Net Annual Load Removal Efficiency= 81.5% 1 -Based on 10 years of rainfall data from NCDC station 736, Blue Hill, Norfolk County, MA 2 -Reduction due to use of 60-minute data for a site that has a time of concentration less than 30-minutes. I OWNTECH CIS ENGINEERED SOLUTIONS T � CDS ESTIMATED NET ANNUAL SOLIDS LOAD REDUCTION BASED ON THE RATIONAL RAINFALL METHOD 419 & 435 ANDOVER ST NORTH ANDOVER, MA Area 0.58 ac Unit Site Designation CDS 3 Weighted C 0.9 Rainfall Station# 68 t� 6 min CDS Model 1516-3 CDS Treatment Capacity 1.0 cfs Rainfall Percent Rainfall Cumulative Total Flowrate Treated Flowrate Incremental Intensity'inlhr Volume' Rainfall Volume cfs) f2f-S-1 Removal % 0.02 9.3% 9.3% 0.01 0.01 9.0 0.04 9.5% 18.8% 0.02 0.02 9.1 0.06 8.7% 27.5% 0.03 0.03 8.3 0.08 10.1% 37.6% 0.04 0.04 9.5 0.10 7.2% 44.8% 0.05 0.05 6.7 0.12 6.0% 50.8% 0,06 0.06 5.6 0.14 6.3% 57.1% 0.07 0.07 5.8 0.16 5.6% 62.7% 0.08 0.08 5.1 0.18 4.7% 67.4% 0.09 0.09 4.3 0.20 3.6% 71.0% 0.10 0.10 3.3 0.25 8.2% 79A% 0.13 0.13 7.2 0.50 14.9% 94.0% 0.26 0.26 11.8 0.75 3.2% 97.3% 0.39 0.39 2.3 1.00 1.2% 98.6% 0.52 0.52 0.8 1.50 0.7% 99.2% 0.78 0.78 0.3 2.00 0.8% 100.0% 1.04 1.00 0.2 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 89.2 Removal Efficiency Adjustment = 6.5% Predicted %Annual Rainfall Treated = 93.5% Predicted Net Annual Load Removal Efficiency= 82.8% 1 -Based on 10 years of rainfall data from NCDC station 736, Blue Hill, Norfolk County, MA 2 -Reduction due to use of 60-minute data for a site that has a time of concentration less than 30-minutes. %l►w N ■ E C H' ENGINEERED SOLUTIONS CDS ESTIMATED NET ANNUAL SOLIDS LOAD REDUCTION BASED ON THE RATIONAL RAINFALL METHOD 419 & 435 ANDOVER ST NORTH ANDOVER, MA Area 0.13 ac Unit Site Designation WQI 1 Weighted C 0.9 Rainfall Station# 68 to 6 min CDS Model 1615-3 CDS Treatment Capacity 1.0 cfs Rainfall percent Rainfall Cumulative Total Flowrate Treated Flowrate Incremental Intensity' Volume Rainfall Volume cfs cfs Removal_{%) inthr 0.02 9.3% 9.3% 0.00 0.00 9.1 0.04 9.5% 18.8% 0.00 0.00 9.2 0.06 8.7% 27.5% 0.01 0.01 8.4 0.08 10.1% 37.6% 0.01 0.01 9.7 0.10 7.2% 44.8% 0.01 0.01 6.9 0.12 6.0% 50.8% 0.01 0.01 5.8 0.14 6.3% 57.1% 0.02 0.02 6.1 0.16 5.6% 62.7% 0.02 0.02 5.4 0.18 4.7% 67.4% 0.02 0.02 4.5 0.20 3.6% 71.0% 0.02 0.02 3.5 025 8.2% 79.1% 0.03 0.03 7.8 0.50 14.9% 94.0% 0.06 0,06 13.9 0.75 3.2% 97.3% 0.09 0,09 2.9 1.00 1.2% 98.5% 0.12 0.12 1.1 1.50 0.7% 99.2% 0.18 0.18 0.6 2.00 0.8% 100.0% 0.23 0.23 0.6 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 95.4 Removal EfficiencyAdjustment2= 6.5% Predicted%Annual Rainfall Treated= 93.5% Predicted Net Annual Load Removal Efficiency= 89.0% 1 - Based on 10 years of rainfall data from NCDC station 736, Blue Hill, Norfolk County, MA 2 - Reduction due to use of 60-minute data for a site that has a time of concentration less than 30-minutes. OvIdONTECH� 111/11/1 ENGINEERED SOLUTIONS T � CDS ESTIMATED NET ANNUAL SOLIDS LOAD REDUCTION BASED ON THE RATIONAL RAINFALL METHOD 419 & 435 ANDOVER ST NORTH ANDOVER, MA Area 0.12 ac Unit Site Designation WQI 3 Weighted C 0.9 Rainfall Station# 68 t, 6 min CDS Model 1515-3 CDS Treatment Capacity 1.0 cfs Rainfall Percent Rainfall Cumulative Total Flowrate Treated Flowrate Incremental Int nlhr V Volume' Rainfall Volume cfs cfs Removal (%) 0.02 9.3% 9.3% 0.00 0.00 9.1 0.04 9.5% 18.8% 0.00 0.00 9.2 0.06 8.7% 27.5% 0.01 0.01 8.4 0.08 10.1% 37.6% 0.01 0.01 9.7 0.10 7.2% 44.8% 0.01 0.01 6.9 0.12 6.0% 50.8% 0.01 0.01 5.8 0.14 6.3% 57.1% 0.02 0.02 6.1 0.16 5.6% 62.7% 0.02 0.02 5.4 0.18 4.7% 67.4% 0.02 0.02 4.5 0.20 3.6% 71.0% 0.02 0.02 3.5 0.25 8.2% 79.1% 0.03 0.03 7.8 0.50 14.9% 94.0% 0.05 0.05 13.9 0.75 3.2% 97.3% 0.08 0.08 3.0 1.00 1.2% 98.5% 0.11 0.11 1.1 1.50 0.7% 99.2% 0.16 0.16 0.6 2.00 0.8% 100.0% 0.22 0.22 0.6 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100,0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 0.00 0.0% 100.0% 0.00 0.00 0.0 95.6 Removal Efficiency Adjustment2 = 6.5% Predicted%Annual Rainfall Treated = 93.5% Predicted Net Annual Load Removal Efficiency = 89.1% 1 -Based on 10 years of rainfall data from NCDC station 736, Blue Hill, Norfolk County, MA r2 -Reduction due to use of 60-minute data for a site that has a time of concentration less than 30-minutes. I E. ....X. . ..... 1 DPI Stibcaf' Reach on [ �( Routing Diagram for M201047_Hydro_EX Prepared by Bohler Engineering, Printed 10/2212020 HydfoCAd®10.00-25 sin 08955 0 2019 HydroCAD Software Solutions LLC M201047_Hydro._EX Prepared by Bohler Engineering Printed 10/22/2020 HydroCAD010.00-25 sin 08955 ©2019 HydroCAD Software Solutions LLC Page 2 Area Listing (all nodes) Area CN Description (sq-ft) (subeatchment-numbers) 3,105 86 <50% Grass cover, Poor, HSG C (EX01) 22,586 74 >75% Grass cover, Good, HSG C (EX01) 60,852 98 Paved parking, HSG C (EX01) 30,129 98 Roofs, HSG C (EX01) 116,672 93 TOTAL AREA M201047 Hydro EX Type 11124-hr 2-yr Rainfall=3,20" Prepared by Bohler Engineering Printed 10/22/2020 H dr CAD®_1.0.00-25 sln 08955 O 2©19_NydroCAD Software Solutions LLC Page 3 Summary for Subcatchment EX01: Runoff - 7.39 cfs @ 12.09 hrs, Volume= 23,779 cf, Depth= 2.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type III 24-hr 2-yr Rainfall=3.20" Areas CN Description 30,129 98 Roofs, HSG C 60,852 98 Paved parking, HSG C 3,105 86 <50% Grass cover, Poor, HSG C 22,586 74 >75% Grass cover, Good HSG C 116,672 93 Weighted Average 25,691 22.02% Pervious Area 90,981 77.98% Impervious Area Tc Length Slope Velocity Capacity Description min feet ft/ft ftlsec cfs 3.1 50 0.0840 0.27 Sheet Flow, AB Grass: Short n= 0.150 P2= 3.26" 2.3 225 0,0524 1.60 Shallow Concentrated Flow, BC Short Grass Pasture Kv= 7.0 fps 0.8 60 0.0300 1.21 Shallow Concentrated Flow, CD Short Grass Pasture Kv= 7.0 fps 6.2 335 Total Summary for Link DPI: Inflow Area = 116,672 sf, 77,98% Impervious, Inflow Depth = 2.45" for 2-yr event Inflow 7,39 cfs @ 12.09 hrs, Volume= 23,779 cf Primary — 7.39 cfs @ 12.09 hrs, Volume= 23,779 cf, Atten= 0%, Lag= 0,0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs M201047�Hydro_EX Type I1124-hr 10-yr Rainfall=4.80" Prepared by Bohler Engineering Printed 10/22/2020 HydroCADO 10.00-25 sln 08955 D 2019 HydroCAD Software Solutions LLC Pape 4 Summary for Subcatchment EX01: Runoff = 11.77 cfs @ 12.09 hrs, Volume= 38,907 cf, Depth= 4.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0,01 hrs Type III 24-hr 10-yr Rainfall=4.80" Area (sf) CN Description 30,129 98 Roofs, HSG C 60,852 98 Paved parking, HSG C 3,105 86 <50% Grass cover, Poor, HSG C 22,586 74 >75% Grass cover, Good, HSG C 116,672 93 Weighted Average 25,691 22.02% Pervious Area 90,981 77.98% Impervious Area Tc Length Slope Velocity Capacity Description min feet ftif# ftlsec cfs 3.1 50 0.0840 0.27 Sheet Flow, AB Grass: Short n= 0.150 P2= 3.26" 2.3 225 0.0524 1.60 Shallow Concentrated Flow, BC Short Grass Pasture Kv= 7.0 fps 0.8 60 0.0300 1.21 Shallow Concentrated Flow, CD Short Grass Pasture Kv= 7.0 fps 6.2 335 Total Summary for Link DP1: Inflow Area = 116,672 sf, 77.98% Impervious, Inflow Depth = 4.00" for 10-yr event Inflow -- 11.77 cfs @ 12.09 hrs, Volume= 38,907 cf Primary 11.77 cfs @ 12.09 hrs, Volume= 38,907 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs i M201047_Hydro_EX Type 11124-hr 25-yrRainfall=6.00" Prepared by Bohler Engineering Printed 10/22/2020 HydroCAD810.00-25 sln 08955 O 2019 HydroCAD Software Solutions LLC Pape 5 Summary for Subcatchment EX01: Runoff = 15.01 cfs @ 12.09 hrs, Volume= 50,389 of, Depth= 5.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type III 24-hr 25-yr Rainfall=6.00" Area (sf) ON Description 30,129 98 Roofs, HSG C 60,852 98 Paved parking, HSG C 3,105 86 <50% Grass cover, Poor, HSG C 22,586 74 >75% Grass cover, Good HSG C 116,672 93 Weighted Average 25,691 22.02% Pervious Area 90,981 77.98% Impervious Area To Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft./sec) (cfs) 3.1 50 0.0840 0.27 Sheet Flow, AB Grass: Short n= 0.150 P2= 3.26" 2.3 225 0.0524 1.60 Shallow Concentrated Flow, BC Short Grass Pasture Kv= 7.0 fps 0.8 60 0.0300 1.21 Shallow Concentrated Flow, CD Short Grass Pasture Kv= 7.0 fps 6.2 335 Total Summary for Link DP1: Inflow Area = 116,672 sf, 77.98% Impervious, Inflow Depth = 5.18" for 25-yr event Inflow = 15.01 cfs @ 12.09 hrs, Volume= 50,389 of Primary = 15.01 cfs @ 12.09 hrs, Volume= 50,389 cf, Men= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs M201047�Hydro_EX Type 11124-hr I00-yr Rainfall=8.S0" Prepared by Bohler Engineering Printed 10122/2020 H droCAD®10.00-25 s/n 08955 ©2019 H droCAD Software Solutions LLC Page 6 Summary for Subcatchment EX01: Runoff = 21.98 cfs @ 12.09 hrs, Volume= 75,432 cf, Depth= 7.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type III 24-hr 100-yr Rainfall=8.60" Area �sq CN Descri tion 30,129 98 Roofs, HSG C 60,852 98 Paved parking, HSG C 3,105 86 <50% Grass cover, Poor, HSG C 22,586 74 >75% Grass cover, Good HSG C 116,672 93 Weighted Average 25,691 22.02% Pervious Area 90,981 77.98% Impervious Area Te Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.1 50 0.0840 0.27 Sheet Flow, AB Grass: Short n= 0.150 P2= 3.26" 2.3 225 0.0524 1.60 Shallow Concentrated Flow, BC Short Grass Pasture Kv= 7.0 fps 0.8 60 0.0300 1.21 Shallow Concentrated Flow, CD Short Grass Pasture Kv= 7.0 fps 6.2 335 Total Summary for Link DP1: Inflow Area = 116,672 sf, 77.98% Impervious, Inflow Depth = 7.76" for 100-yr event Inflow - 21.98 cfs @ 12.09 hrs, Volume= 75,432 cf Primary - 21.98 cfs @ 12.09 hrs, Volume= 75,432 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs . f .__. Pl ,3 \��t tl/l! n �. •;�rrX ' tON5iR41CTION— '. -- -- - -" off. =�!�J ��,�� AREA-xFA.B175F _ - - AREA=23i,7S5 dF �"jr: .,�'' , /�/ ��'+ `ter ••".•:,:.•y �1; Tc=8.91g74{ullty _\ 7e=8.0 fJiN.iUIN-1 ^,r f"� +ii�'`�%\, �Fxasasru srre '\ PLAIN OccuuENTS �; IP • ��- — it ��' ;r / !,,,•� '�/ /' ,✓��' . r��-_.- � `i,�' •.ail, '� ,f6s�✓// �P ��/ g�QH`F.E6R// fa iv -"PROPOSED OOAfafifONS WATERSHED MAN �WS-PR WNW Hydra PR•R@V3 Prepared 6y 13chte( Printed 6110ROd1 HkvdreCAC*10.00-19 sln MS55 02016 HvdroCAC Sots fo Solutions LLC Pane 2 Area Listing(ail nodes) Area Crd ❑esc,ippon (agdr( Isu6catchment�um6esJ 19.614 74 >75%Grass cover,Good,FSG C(PRO]A,PROM) ,4 78,881 95 Pavad parking,KEG C(PROM,PROM) PRO FA 18,157 99 Roofs,}iSGC(PROM PROM) 94 TOTALAREA Cultec t5tem-02 PR01B VLY H Cultee Syst -01 P1 2P; infiltration Trench snt>w Link nourmsok:g,—rorr201047_jsyd,o_PR-aew rrzpnldbfnora.r,r,;n:edarl6zoxl R,d:.CRIIO rousre.a sass a:orer,e�cwsrr:�re soi:�:uc i i I M201047 Hydro_PR•REV3 M201047_Hydro PR•REV3 Prepared by Kohler Printed 81f Of2021 Prepared by Bohler Printed 611012021 BY21EKA010.00A9 sfn 05955®2016 H 4roCAD Software Solutions LLC Pace 3 HfdroCAH®IOA0 10 srn 00955®2016 HyftCAo So6ware Sol,,I ons LLC Paae 4 Soll L€sling{all nodes] Ground Covers(ell nodes) Area Sol SuhcatchmeM HSG-A HSG-e HSC�— HSG-O Other Total Ground Sub (sq-ft) Grnbp Numbers 40) Oq-k MAI {sVO Isq-ftl (sq-IQ Cover Nun 0 HSGA 0 0 i9,634 0 0 19834 �75%Grass 0 HSGO cover,Good 116,672 HSGC FROM.PROW 0 0 7088i 0 0 7a,881 Payed paddeg 0 HSG€] 0 0 10.167 0 0 ia.157 Roofs 0 Mar 0 0 116,672 0 a M,677 TOTALAREA it6,672 TOTAL AREA I M201047 Hydro_PR-RRV3 M201047Hydro_PR-REV3 Type 11124-hr 2-yrRalnfaR=3.20" Prepared by Bohler Prinled 6f10f2021 Prepared b_y Bohler Printed 6f1012021 HvdioCADD 10.00-10 sfn 08955 02016 HydroCAD SoNwce Solurans LLC Non 5 HydroCAO,&10.00-19 sin 08955 02016 HvdroCAD Softvraae Solutons GLC Peoo 6 Pipe Listing(ell nodes) Time span=0.00-72.00 hrs,d1=0.02 hrs,$601 points Runoff by SCS TR-20 method,UH=SCS,Wetghled-CN LMO Node In-Invert out-Invert Length Slope n DlaniWidth Heght Inslds.FII Reach routing by Fyn-Stan€ad method•Pond fouling by Dyn-Star-Ind method Numher {feet} (feet) (feet) OM) (inches) {Inches) (inches} SUbaalChmen1 Pfi01A: RvnaRArea=35,753 sF 85.249G rmpervous Runoff❑eplh--I.54" £ 1P 200.00 196.00 $3.0 0.06D6 0.013 15.0 0.0 0.0 TF8.0min CN=94 Runog=2.34cfs 7,560cf 2 3P 205.35 705.00 35.0 0.0100 0.013 15.0 0.0 0.0 Subcalclunent PRO£B: Runoff Area=80.917sf 82.01%Imperr:ous RunolI Deplh=d54" Tc=6.Om'n CN=04 Runoft=5.30crs 17,r63c1' Pond JP:Cullec System-01 Peak Ele-2".70 Storage=4,419cf h3oa--5.30cis 20,478cl Discarded%O.02crs 3.672cf Primary=4,44cfs 16,783cf Secendaryr-0,00 cis Ocf Cuilf--4.46cfs 20,456ct Pond 2P:Infiltration Trench Peak ET-201.2V Sioraga=128 cr 10-4.44 crs 15,783 cr DiswrdednO.02 cfs 1,014 cf Pdrnery=4.42 cfs£5.770 cf 0u111ow=4.44 crs 10.783 cf Pond 3P:Cullec System-02 Peak Eler-205.OV Sterag,3,530 cf lnAavr2.34 crs 7,660 cr Discarded=0.02 cfs 3,709 cf Pdmary"1.17 cfs 3,325 cf Cutflovr--1.19 cfs 7.034 cf Link DPI:DPI Inflsx=4.42 cfs 15,770 cf Pdmsr4.42 crs 15,770 cf Tolal Runoff Area=116,672 at Runoff Volume=24,733 cf Average Runoff Deplh=2.54" 17.00%Aarvlous> 19,834sf 83,00%Impervious=96,838 sf M201047 Hydra_PR-REVS Type 1N24-hr 2-yrRafnfatl-3.20" M201047 Hydro MREV3 Type 1f124-hr 2-yrRainfall-3.20" Prepared by Bohler Printed 61fe1202t Prepared by Bohler Printed 61100021 HYdreOAD®10.00-19 srn 08955 02016 IlydroCAD Sofhwre So14ons LtC Pale 7 HydroCA13010.00-19 On 08955 02010 HydreCAD Software$01utions LLC Pane 6 Summary for Subeatchment PROM Summary forSubcalchmenl PR01t4: Runoff = 2.34 cfs a 12.08 hrs,Volume= 7,580 cr,Depth=2.54" Runoff — 5,30 ofs @ 12.08 hss,Volume= 17,163 c1,Depth=2,54, Runofrby SCS TR-20 method,UH=SCS,Weighted-CN,Time Span=0.00-72.00 hm,d1=0.02 hrs Runoff by SCS TR-20 method,UH=SCS,Welghted-CN,Time Span=0,00-72.00 hrs,dt=0,02 hrs Typo III 24-hr 2-yr Ralnrall=2120" Type III 24-hr 2-yr Ralorel1=3,20" Area(so CN Desrafollon Area CN Dascrt tlan 3,475 98 Roo€s,HSG C 14,662 96 Roofs,HSG C 27,002 ea Paved parting,HSG C 51.679 88 Paved paddng,HSG C 5 276 74 >754.d Grass cover Good MSG C 14,556 74 >75%Gras$toyer,Good,HSG C 35,755 04 4Velghled Average 80,917 04 Weighted Average 5,278 14.76%PeMous Area 14,556 17.991.4Pervious Area 30,477 85,24%Impervious Area 66,381 62.01%Impervious Area To Length Slope Velocity Capadly Description To Length Slope Velocity Capacity Descriptlon (m1n) (loep (B)hY 1Nsec1 (cfs) (min) (Feel) (IM) (ffsec) (Us1 6A Direct Entry,01MC1. 6.0 Direct Entry,Direct Su€lcatchment PROM SuUcatclunent PROM Hydrograph _ Hydrograph '2,34 c€s an„>r 5.30 tfs tY,peif112A-hr 5 _ try'PW 11t-24-W 2yr Ria�nFall- gip" s 2-yr;Raht(811 s:zo°' Iuf�gEF AI5i� 5s# ljuitt5Nj4tcaP91 Rtir{offo11imfia7RsSb cf i�#'natit,�P4Bhie=j7,�;s �# R�4nol�ipepih • 4ri p;ti= . =Q.t_Ln1tL_ T`c`b�.o inift e] d r9 i2141a tE 11124N)930 s2s49AW Q484a 63 w 5251 U 59062 f4 tb 637072 a 4 6 6i0 i214 iB 581.tiz 141d R3 a'1911s%3B a391 nsm 59�5s 5a u}rs J6i FA 556a 5p 11 nm.an"�H n".e[naarq M201047 Hydro PR-REV3 TyOM24-hr2yrRainfall=3.24" M201047_Hydro PR-REV3 Type lit24-hr 2-yrRainfaf1=3.20" Prepared by Bohler Printed 611O12021 Prepared by Bohler Primed 611of1021 HvdraCAD810.00-19 sln O8955®2016Hyd.CAD Sallrare5o1v6ons LLC Paae9 HvdraCACA 10.00-19s1a 0895502018 HydraCAU Scti-.Sala-LLC Noe 10 Summary for Pond iP;Cultec Systom-01 Device Rougnil invert Outlet Devices #1 Primary 200.00' 15.0"Round Culvert Inflow Area 116.672 sr,83.00%Impervious,$13OWDepth- 2,11' ror2-yroverl L-33.0' CPP,mitered to confann to fig.Ke=0.700 Inflow = 5.30 cfs(d2 12.08 hrs,Volume= 20.478 of Inlet!Oullat IOVert=200.09 1198.00' S=OX606 7 cc=0.900 Outflow = 4.46 cfs €2.14 his,Volume= 20.468 cf,Allen=1646,Lag=3.2 min n=0.013 Comagaled FP,smooth hteder,Flow Area=1.23 sr Discardad= 0.02 cfs €2.14 hrs,Volume= 3.072 of #2 Device 1 205.10` 4,0'long x 0.6'breadth BroadCrested Rectangular Welr Pdmary = 4.44 tfs 12.14 hcs,Volume= 16.783 of Head(feel)0.20 OAO 0.60 0,80 i,00 Secondary= 0.00 cfs @ 0.00 hrs,Volume= 0 cf Coef.(English)2.80 2.92 3.08 3.30 3.32 #3 Secondary 206.50' 10.0'long x O.5'breadth Broad-Crested Rec€angular Weir Routing by Dynstor--Ind method,Time Span-0.00-72.00 hrs,dt=0.02 hrs Head(feel)0.20 0.40 0.80 0.80 U10 Poa%Flew204.70'@12.14hrs Surf.Area=3,558S( Storage=4,419cf Coef.(English)2.80 2.92 3.08 3.30 3.32 #4 Dov.m 1 203.85' 12.0"Vert.OdlitelGrate X 2.00 C=0.800 P;ug-Prow detention time=282.2 min calculated for 20,456 of(100%of Inflow) #5 Discarded 199.00' 0.170 inlhr Exfiltratton(Sandy Loam)over Surface area Cenlef-01-Mass del,tfine=281.5 min(1.078.8-797.3) Conductivity to Groundwater Elevation=197.20' Volume Invert Aval.Store a Storage Descrt ton pp€9carded OulFlow Max=0.02 cfs(§42.14 has HW-204.70' (Free Discharge) VIA 202.75' 2.528 cf 30,75'W x if 6,60'L x 2,64'H Field A '-5=FxrihraIIon(Sandy Loam)(Controls 0,02 cis) 9,027 rfR-160 LHO x 99 Embedded=6,321 of x40.0�h Voids nmary OutFlow Max-4.44 cis @ 12.14 hrs HW=204.70'TMh201.28' (Dynamlc 7allwater) B2A 203,25' 2,706 c( Cuecti eS80XLHD x99 tnalde#f =Culverl(Posses 4.44 cfs of9.63 cfs potential flow Effective1lre =20'Wxx .YH 1121 sfx 10269-v27,2 cf ) Overal Siza=33.0"W x 18.5'H x 11.00'L wdh 0.75'Overlap 2=Broad•Crested Roclangulai Weir(Controls 0,06 cfs) Row Length AdjuSlmeo1=-0,761 x 2.65 at x9 rows =0rificel(I rate(Orifice Controls 4.44 cis @ 3.13 fps) #3 205,90' 44 or 4.00'Sorfa x 7A d;nq(V A-2)j Secondary OulFfow MaK0.00 cfs a 0.00 hrs HMIO9 00'7W=0.00' (Dynam[c 7aitualer) #4 206.50' 683 cf Surface Pond€ng(CR-10)(Pyramldal)_lated below(RenZc) 3=Rroa4-Crested Rectangular Welr(Corlrols 0,00 cfs) #5 208.50' 260 of Surface Ponding(CI8.10)(Pyramldalf.isled below(Recaic) its 206.00, 188 cf Surface Pending(CB-11)(Pfrsmalle"ted below(Recalcl 8.410 c( Total Avaitable Storage Storage Group A created with Chamber Mard Fievation Gurf.Area Inotilore Cum.Store WelArea _ (feet) (sn-01 (cublo-reet) fmbld reel) 4q-fll 205,90 4 O o 4 200.30 400 59 59 400 207.00 t,5ca 624 683 1.503 Elevation SudJuea Inc.Store Cum.Store Wel.Area _ Ifeet) (sg-pj (cublo4eet) (cub!o-reel) (sq-10 206.50 4 a 0 4 207.00 1,480 260 260 1,481 E;evation Sud'Area Inc.Siore Cum.stord {feet) (sq-fi) (cublo-reetl (cubk'feel) 206.00 95 a 0 208.80 236 132 132 207.00 375 56 188 i i M201047 Hydro�PR•REV3 Type lit 24-hr 2 yrRafnfal1=3,20" M201047_Hydro PR-REVS Type 11124-hr 2 yrRatnfatl=3.20" Prepared by Hohler Prtnled 61IM021 Prepared by Kohler Printed 61101202€ HYdroCADM M00-19 s!a 08955-D2010 Hyd.gAD SgM,are 5oTvWs LLC Pane,$£ HydrocAD4010.00-19 sin 08955 0 2016 HydroCAD Software Solutions LLC one 12 Pond 1P:CuHec System•01-Chamber Wizard Field A Pond 1Pc CDltec Systent•01 Chamber tdodel=Cullec R-f 60XEHD[Cu1lec Rechargero 150 uydraer,PhXLHD� + .. ErfecOve Size=20,8"P1 x 18.0"H=>2.65 sf x 10.251=27.2 of I M Overall Size-33.OW x 18.5"H x 11.00'L with 0.75'Overa y0 Cfe 11 Row Length Adjustment-+0.75'x 2.65 sfx 9 rows p + ; - - - - - - - - ", 4wad ,MW..Elev�20A:7p, 33.0"Wide+6.0"Spadng=39A-C-C Raw Spacing - `TT-r'"-'Ttfagew4;b79�f s ' 4.44 ors 11 Ohamhetshtow x 10.25'Long+0.75'Now Adjustment=I i3.6V Row Lergth+12.0"End Stone x 2 115.50'Base Lergth e. 9 Rows x 33.0-tide+6.0-Spacing x 8+120"ride Stone z 2=30.7V Base Wdlh _ 6.0"Base+18.5'Chamber Height+0.0'Cover=2.54'Fletd Height s 99 Chemioers x 27.2 cf+0.75'Row Adjustment x 2.65 sTx 9 Rows=2,706.0 cf Chamber Storage a 9,027.0 cf Reid-2.706.0 cf chambers=6,321.1 cf Stone x40.0%Volds=2.626.4 cf Stone Storage chamber Storage+Stone Storage=5.234.4 cf=0.120 of Overa6 Storage Efdenoy A 68.09'0 0,00 Cfs Overall System Size-115.50'x 30.76 x 2.54' ]4 E Sp IY 1416rA]0Yri1:+]26Y]]334 Yi Y94]�YM dod rRY159Sd596]b1L4EfifBTY]Y 99 Chambers .rn>on1 334,3 cy Field 234.1 cy Stone MINIM a' I I i M201047 Hydro PR-REV3 Type IIt24-hr 2-yrRafNaN=3.2Q" M201047_Hydro_PR-REV3 Type R124-hr 2-yrRa1nfa11=3.20' Prepared 6y Ballij Printed 6/1012021 Prepared by Bolder Printed 6110f2021 HVdroCADS%00-19 sin 08955®2016 HvdmCAD SORvare Solmans LLC pane 13 H di 10.00.19 sfn U955®2010 H dmCAD Sotnvare Solutions LLO Summary for Pond 21a:Infiltration Trench Pond 2P:Infiltration Trench lnnow Area= 10,672A 83.00%lmpervIous,Inflow Depth= 1,73' for 2-yr event Hldragnuh inflow AAA cfs Q 12.14 hrs,Volume- 16,783 of I . . . . I . _ Outflow = 4A4 cis@ 12.14 hrs,Volume= 16,78301.Atten=0h,Lag=O.OrNn ` Add rt Do.n Discarded 0.02 cis@ 12.14 hrs,Volume= 1,014 of Prima = 4A2 cis 12A4 hue, ,Volume= 15,770 of 442c4�s Routing by Dyn-Star-tad method,Time Span=0.00.72.00 hrs,dt=0.02 him < Peak Ller 201.28'®12A4 hrs Surf.Area=163sf Slaraga=123 cf - Plug-Flowdetenllonilme=5,9mincalculaledfer16,770cf(1W96ofhngw) Center•ai-Mass del.time=6.0 mm(642.6-636.6) 4- -1,2H...H-44-1-44 - b Volume Invert Avall,Stowge Storage Desrhpdon '. . i t . 1 . 1 . . . . . . . i . . . . . . . . . #1 197,25' 60 of 3,00W x 20,00'L x 3.78'H Prlsmalold °' 1-'ri-1-?-1-i-}-�,-i-H-4-}4i-1-1i-1-141-i44-1-1- 225 of Overag-25 dEmbedded=283 d x 40.0'6 Voids #2 198.001 25 of 15.0"Round P€pe Storage Inside#1 L=20,v r #3 201.001 51of Trench Surface Storaee tPdsmallclLlsted below(Recalcl 156 of Total Avallable Storage s _ . . . .-. Elevalbn SuriArea €na.Stare Cum.SlorC o s 4 e arouteistaaonzs�asa�as�rxa3aaeaunaaasos:r4sesewereacosararr Veetl (sd-A) fcublo-SeelS (wyc-fee0 20100 60 0 0 201,30 105 25 25 201.50 MO 23 51 DeVen Routing Mail Outlet Devlce5 #i Primary 201.10' 20.0'long x 0.5'breadth 13"ad-Crested ReclangularWeir Head(feet)0.20 0.40 0.60 0.80 1.00 CoeL(English)2.80 2.92 3.08 3.30 3.32 02 Discarded 107.25' 0.170[Whr Exftltradon 45andy loam)ovarsurface area CanductW to Groundwater Elevation=197.20' i[iscarded OulFlow Maz=0.02 cis @ 12.14 him HVY-201.28' (Free Discharge) 2-ExRltrat;on(Sandy Loam)(CoMrals 0.02 c(s) rlmary OutFtgw Man=4.42 cfs@ 12.14 himHW=201.28'TMO.00' (t)ynarnc Taiwater) -Broad-Crasted Rectangular Weir(Mir Controls 4,42 cis Q 1.20 fps) i i i i i M201047 Hydro_PR-REV3 Type 11124-hr 2-yr Ralnfaf1=3.20" M201047_Hydto PR-REVS Type 11)24-hr Ayr Ralntall=3,20" Prepared 6y Bohlef Printed 6/1 012 0 21 Prepared by Bohler Printed 6/1012021 HvdroCA61A.f0,00.19 sM 08956®2016 NvdroCAtl Sa9waresolutions LLC Pane 15 HvdioCADZ40.00-19 s1n 08955®2016 HveroGAD Sohvrare 3ofWans LLC Pnae 16 Summary for Pond 3P:Culteo System-02 pond 3P:Cullec System-02-Chamber Wizard Field A Inflow Area 35.755 s1,85.24%tmpoMous,Inflow Oeplh= 2.64' for 2-yrevenl ChamberModel=Cultec R-t50XLHD(Cultee Rechargert9150XL1-113) Inflow = 2.34 cis 12.08 trs,Volume= 7580 of Effective Slze=20.6`W x f8.0"H=>2.65 sf x€D.25'L=27.2 cf Outflow = 1.19 cfs® 12.28 trs,Volume= 7,034 cf.Allen=40%,Lag=10.4 min Overall Size=33,0"W x 18.5`H x 1 1.00'L with 0.75'Overlap Discarded= 0.02 cfs 12.26 trs,Volume= 3,700 of Pdmary 1.17 cis® 12.281vs,Volurn" 3,325 cf Row Length Adjushnenl=+0,75'x 2,85 sf x 13 tows - Reuling by Dyn-Stor-Ind matllod,Time Span-0.00.72.00 his,dt=0,02 hrs 33.0"Wide 4 6,0"Spacing=39,0"C•C Row Spacing Pdak Cleve 205.90'®12.26 hrs Sud.Area=2,376 sf Slorago=3,530 cr 5 ChamberslRow x 10.25'Long+0,7&Row Adjustment=52.00'Row Length+12.0"End Stone x 2= Plug-Flow detentlon time=824.6 min calculated for 7,032 cf(83h of Inflow) 54.00'Base Length Center,of Mess det.lime=787.1 min(1,674.3.787.1) €3 Haws x 33.0"Wde+6.0"Spacing x 12+12,V'Side Slane x 2=43,75'Base Wdlh SO'Basa+18.5"Chamber Height+6.0"Cover=2.64`Field Height Volume Invert AvaO.Store a Storage Descri Bon #1A 203.25, 1,686 cf 43,75'W x 64.00'L x 2.54'H Field A 65 Chambers x27.2 cf+0.75'Raw Adjustment x 2.65 at x 13 Row =1,790.7 cf Chamber Storage 6,005 of Overall-1.701 cf Embedded-4,214 cf x 40.0%Voids #2A 203.76' 1,791 cf Callao R460XLHD x65 Inside#1 6,004.7 cf Fie1d-1,790.7 c1 Chambers-4,214.0 cf Slone x40-0%Voids=1,685.6 cf Stone Storage Effective Stze=29,81W x 180H=?2,85 six 10.25'L=27.2 If Overall Size=33.D W x€ WI-1 x 11.001 with 0,75'Overlap Chamber Storage 4 Stone Storage=3,478,3 cf=0,030 of Row Length Adjustment=+0.76'x 2.85 sf x 13 rows Overall Storage FUdency-57.9% #3 201.60, 88 cr 4,00'0 x 7.00'H OCS-2 Overall System Size 54.00'x 43.75'x 2.64' 3,564 or Total AvalaUe Storage Storage Group A created with Chamber Wzard 65 Chambers 222A cy F1eid D"c') Rovlln Invert Ou8et DaViOas 156.1 cy Stone #1 Primary 205.35' 16.6"Roundculvert L-35A' CPP,mitered to conform to riff,Ke-0.700 IntellOullellnved=205,35'1205.00' S=0.01001t Cc=0.900 n=0.013 Corrugated PE,smooth Interior,Flaw Area=1,23 sf #2 DOY,ce 1 205.70, 4.0'tong x 0.V breadth BroadCresled Rectangular Weir Head(feet) 0.20 0.40 0.60 0.80 €.00 Cool.(English)2.60 2,92 3.08 3.30 3.32 #3 DaVice 1 204.40' 12.0"Vert.OrllEceletate C=0.600 94 ❑iscarded 201,60' 0.1701nlhr Exfiitealion(Sandy Loam)over Surface area CondudvRy to Groundwater Elevation=20£.25' ppiscarded Ou€Flow Max=0.02cfs012.26hrs HW=205,eU (Free Dlscharga) -4mWilirallon{Sandy Loam)(Controls;0.02 cis) r€mary Outflow Max=1.15 cfs @ 12.26 hrs HW--205.80'T1h-204.60' (Dynamlc Tailwater) Calved(barrel Controls 1,15 cfs @ 3.28 fps) 2=BroadCrested Rectangular Warr(Passes<0,99 cis potential flow) =0rificelGrale(Passes<2.80 cis potential flaw) M201047_Hydra_PRdiEV3 Type III24-hr 2-yrRafnfail=3.20" M201047 Hydro_PR•REV3 Typo III24-hr 2-yrRainfa11=3.2a' Prepared by Boh€er Printed 6110f2021 Prepared By Bohler Printed 6110,2021 HvdroCADV 1040-%s1n 06955020i9 HydroCAD So"m solutions LLo Pane 17 HdroCADD W.00-19 sM 0895502016 ndroCAD SoMmre Solutions LLC page A Pond 3P:cltltec Syslem•02 Summary for Link DPI:ON xy4rograph Inflow Area 116.672 sf,83.00%Impervious,Inflow Depth= 1.62" for 2•yr event 2.34 cfs € € 3 1 I € ! € ot"'"' Inflow R 4A2 ch® 12.M hm.Volurne= 16.776 cf ©nor:« primary - 4A2 cfs Q 12.14 hrs.Voloma= 15,770 cf,Alton=0%,Lally 0.0 min frlfd¢1i4'Ire �35 75b Sf '°"z e - -i-he4 M 06_0i Primary ou111aw=Intlow,Time span=0.o0-7z08 hrs,dcII 0.02 hrs �tarae�3, 0 CE Link DPI:DPI flydragraph € �1.19efs ■� u 4.17Crs - - - �4y42Crs 4 3 6 fS e. ___ _ _ ___ _ _ 0 2 4 fi B 10 t2141fi 18 J0122426]3 J3J1343c 3J k14J 61 d643:N52545fi:8e06J Wbufd Te ll t4 0 1 4 6 9 fO rl if 16�9N]31�?823 J3s ar�J 3a 4)4Ju i649505rW y55J 6J fiiHOJ se ion Tma aoorrf I i i I PA201047_Hydro_PR-REVS Typa 11124-hr 10-yfRalnfall=4-80" M201047_Hydro�PR-REVS Type Ut 24-hr 10-yrRafnfai1=4.80- Prepared by Bohler Printed 8f1012021 Prepared by 13ohle7 Primed 611012021 flyd,OC 10,00-7g sin 08965 452016 RydmOAD Sokvr a SoluUons LLC _ Pao*I HrdraCA69 10.00-19 51n OB955 02016}iVdraCAD SaRware 5ofuGons LLC inane 20 Time span=0.00.72.00 hrs,dt=0.02 firs,3601 polnis Summary for Su@ealchmenl PROM Runoff by SCS TR-20 method,UH=SCS,Weighted-CN Reach rwiing by 13Vr Stor-Intl method•Pond touting by Dyn-Stot-Vd method Runoff = 3.613rfsQ 72.08 hts,Volume= 12,246 of,Depth=q,i 1" SuhcatchmentPROM Runoff Area=35.755 sr 6524%Impervious Runoff Deptd-4.17- Runoff by SGS TR-20 method,UH=SCS,Walghled-CN,Time Span=0.0042.00 hrs.dl=0.02 hrs Tc=8.0 min CN=94 Runoff=3.69 cfs 12,246 ci Type III 24-hr 10-yr Rainfall=4.80" SuhcdtchmentPROM Runoff Afea=60,917 sf 82,01%lmpeNoos Runoff Deplh=4.11" Area{sf1 CN Desuip9on Tc=8.0 min Cf1=94 Rvnaft=8,33 c!s 27,719 ct 3.475 98 Roofs,H80 C Pond 1P:Cultec System-01 Peak l=lev=206.32'Stofage=5,386ci In9arr-12.Otcfs 35,697 cf 27,002 fill Paved parting,HSGC DIscarded=0.03 cfs 3,768 cf P,Pmary=11.57 cfs 31,766cf Seconda,y=0.06 cfs ocf Wflow 11.80cfs 35,574 c1 5278 74 >15%Gress cover,Good HSGC 35,755 04 Weighted Average Pond 217;Infiltration Trench Peak Elev--201.44'Storage-148cf Inffovr-17.57cfs 31,7S6 c! 5.270 £4.76%Pervious Area Oiscarded=0.02 cfs 1,128 cf Primary=11.67 cfs 30.66D cf OulflaW-11.69 cis 31.766 cf 30,477 85.24%Impervious Area Pond 3P:Cultec System-02 Peak Elew206.64'Storage=3.642cf Inflow=3.68efs 12.240 ct TO Length Slope Velocity Capacity Description ❑lscarded=6.03 cfs 3,014 cf P,rnary=3.90 cis 7,876 c! Outpovr-3.92 cis 11,692 cf (min) (feet) (M Msec) f01s7 6.0 Direct Entry,Direct Link DP1;DPI kll v-11.67 cfs 30,650 01 Prima,y=l L67 cfs 30.660 d Suhcatchnnenl PROM Total Runoff Area=110,612 sf Runoff Volume=39,868 cf Average Runoff Depth=4IM" Rydrograph 17,00%pervious=10,434 sl 83.06%Impervious=96,036 sf un— 3,68 C(5 7�rlifa ICI��-hr, -}lK Rait;ifli W.86'f_ Iju1t7ff j4le''a746r7;5b # i 1�unpff UQ�ul�e�12;�4��f o- 0 1< 6 81a 11441d 1aN]T19]d 1a 3])3]I]h oa 6J 1]4dgtl3�53545h 59W a]fA Eb 63]J is r1m,IhNsrl M201047_Hydro_PR•REV3 TypeW24-hr fO-yr1?afrrfa1I--t80' M201047 Hydra PR-REV3 Type III24-hr 10yrRalnfa1h4.80" Prepared by Bohler Printed 611012021 Prepared by Bohler Printed 61101202€ HydroCADS f0.00-19 s!n 08955®2016?iydroCAD SoQsvare SolWans LLC- _ Nee 21 HVdmCAD)10.00-11 sln 08955®2016 HydroCAD Wtvmre SoMons LLC Paqa 22 Summary for Subcatchment PROM Summary for Pond 1 P:Cultec Sy5tem•01 Runoff = 8,33 cfsQ 12.08 hrs,Volume- 27,719 of.Depth=4.11" Inflow Area if6,6725f,83,000A fmpepAous,Inflow Depth= 3.66" for ID-yrevenf Inflow = 12.01 ers(M U.09 hrs,Volume= 35.597 cf Runoff by SCS TR-20 malhod,DH=SGS,Weighted-CN,Time Span=0,00-72,00 hrs,dt=0.02 hrs Outflow 11.80 cis to 12.48 hrs,Volume= 35,574 cf,Atwn=31A,Lag=0.0 min Type III24-hr 10-yr Ratnfa8=4.80' ❑"rded 0.03 efs @ i2.10 hrs,Volume= MOB of Primary = 11.57 cfs 0 12.08 hrs,Volume= 31,785 of Area(sr) CN Description _ Secondary= 0.00 CIS @ 0.00 hrs,Volume= 0 cf 14.682 98 Roofs,HSG C 6i,67e 96 Paved parking,HSO O Routing by Dyn Storind method,Time Span=0.0042.00 hrs,di=0.02 hrs 14.556 74 >75%Grass cover.Good-HSG c Peak Uew 206.32'@ 12.10 hrs SurfArea=4,132 sf Stofago=5,386 cf 14.556 04 Wighl17.0% Average Plug-Flow detention time=173.8 mfn calculated for35,565 of(100%of Inti0w) 66,361 17.09%Pervious Area Center-of-Mass deL time=174.1 m€n(059.5-785.4) 88,381 82,01 h Impervious Area To Length Slope Velocity Capacity Descriptilon Voluma invert Aval.Stomae Storage Description min feel RAI illsec "I 61A 202.75' 2,528 of 30.75'W x 116.60%x 2.6471 Field A 0.0 Direct Entry,Direct 0,027 of Overall-2.706 of Embedded=0.321 of x40.0%Volds 42A 203.25' 7,706 of CoRec R-150XLHD x 09 1nslde 91 SUhCatChment PROMEffecWe Size-29.8'W x 18.0'H=-2.65 sf x 10.25'L=27.2 of Overall Size=33.0"W x 18.6'H x 11.001 with 0.75'Overlap Ilrrarograph Row Length Adjuslmenl=+0.75'x 2.05 of x 9 rows �_,_, 43 190,W 44 or 4,00'D x7.00'H OCS-1 x0.5 ' 8.33 cis ! . . . ' ' ' ' ' ' 'V' -' '.'-' -'- d4 205.90' 663 of Surface Pending(W4f-2)(Pyram#dallL ted Wow(Recale) 85 206,50' 260 of Surface Pondbng(C040)(PyramIdalpsted below(Recalc) [ape llf 4=t`rr x6 208.00' tsa of Surface Portdlrtg lCB-11)(Prtsmatic)Lisled below 02ecaM 6,410 of Total Available Storage 7 Stafage Group A created with Chamber Wizard df)of� a�Die�27's�'id Ft i, , y elevation Surf.Area InaSlore Curtmstoro We1Area - - - - -- - -- - - - - �I Wit 114ft 6')31i)1=/011 (feel) (SA-8) (cubMeet) (a:blo.feep (So-fl) 205.90 4 0 0 4 a 4 2g6.30 400 59 59 400 _ - - - _;- �$4- 207.00 1.500 624 683 1,503 a Elevation Surf.Area InaSlpm GumStofe WelAnea feel -R wWc-feet (cubicfeet s-fl - - - - - -- -- - 208.50 4 0 0 4 r 207.00 1.460 260 260 5,48i a s:b s+o rx i.rs+4 ai zr 4axsava�aa 4.i asw.x ail ea�sti Sr 3i sa sasisiuie sa ran Flevallon SWArea Ino,Slore Cum.Store (feet) (sq-it) (cubic-feel) (cvble-feet) 206.00 95 0 0 206.80 235 132 132 207.00 325 58 i88 i i I i i M201047_Hydro PR•REV3 Type)fi24-hr 10-yrRelnfalf=4.60" M201047_Hydre_PU-REV3 Type 11124-hr 10-yrRalnfal1=4,60" Prepared by BOhler Printed 81€012021 prepared by Bohler Printed 611012021 H rdroCAC&10.00-19 sin 08955 02016 H droCAD Soware eolvtlans LLC Pace23 HvdmCAoID 10.00-19 sin 08955 0 2016 HvdroCAD Software St,fions LLC Pane 24 Device Routing raven outlet Ow Aces Pond 1Pl Cultec Syslem-01-Chamber Wizard Field A #1 Primary 200.00' Me"Round Culvert L=33.0' CPA,mitered to conform to fill,Ke=0700 ChamberModel=Cultec R-160XLHD(Cultec RechargerSl 60XLHD) Intel!outlol Invert=200.00'N 98.40' S=9.0806 Y Crr 0.904 Effective Siie=29,8"W x 18,0'H=>2,65 sf x 10,25'L=27,2 cr n=0.013 Corrugated PF,smooth lnterwr,Flow Area=i m sr Overall Size=33.0'W x 18.5'H x 11.00'L with 0.75'Ovedap #2 OmAce1 205.10' 4.0'tong x ON breadth Broad-Crested Rectangular Weir Row Length Adjustment=+4.75'x2.65 six 9rows Head(feet) 0.20 0,40 0,80 0,80 1,ao CoeL{English)2.80 2.92 3.08 3.30 3,32 33.0"WEd0+8.0"SP acing'39.0"C-G ROW Spacing 43 Secondary 208.50' 10,0'long x 9d'breadth Broad-Crested Rectangular Weir Head(feet) 0.20 OAO 0.60 0.80 1.00 Cool.(English)2,80 2,92 3.00 3.30 3.32 11 Chambers/Row x 10,25'Lang+0.75'Row Adjustment=1 13.50'Row Length+12.0'End Stone x 2= 94 Device 1 203.09 12.0"Vert.OrMcelOrate X 2.00 C=0.600 115.50'Base Length #5 ❑{scanted 199.00' 0.176 Irvhr Exit ltrallon 15andy Loam)over Surface area 0 Rows x 33,0"Wdo+6,0"Spacing x 8+12,0"Slde Slone x 2=30,7V Base Wtdth Conductivny to Groundwater Elevation=107.20' 0)'Base+18.6'Chamber Height+6.0'Cover=2.54'fleld Height O0lscarded OutFlow Max'0.03 cis a 12A0 hrs HVd=205.32' (Free Discharge) 99 Chambers x27,2 of+0.7V stow Adjustment x 2.65 st x9 Rows=2,106.0 cf Chamber Storage '"5=Fxfiltranon(Sandy Loam)(Controls 0.03 cis) Tdmary OulFlow Max=-11.49 cfs C 12.08 hrs HV,k208.29'TW=201,44' {Dynamic Tellwater) 9,027,0 cf Field-2,706.0 of Chambers=6.321A cf Stone x40.0%Vofds=2,526A cf Slone Storage Culvert Qnlet Controls 11.40 cfs C 9.36 fps) =13Md-Crested Rectangutar Weir(Passes<17.28 cfs potential flaw) Chamber Stooge+Stone Storage=5.234.4 Cf=0,120 of =6rincetOfate,(Passes<10,54 cfs potential flow) Overall Storage LMdency=68.0% Overall System Size=115,50'x 30.75'x 2.54' Secondary oulFlow Mar--0,00 cfs®B4O0 hrs HVV-199.60'TW-O.W (Dynamic Taitwater) 3a13iroad-Crested Rectangular Weir(Conlrols 0.00 cfs) 99 Chambers 334.3 cy Held 234.1 cy Slane d E 8 I M201047_Hydro_PR-RRV3 Type lit 24-hr 10-yrRalnfalt=4-80' M201047 Hydro-PR-REVS type M 24-hr 10 yrRalnfal1=4.80" Prepared by eohfer Printed 6 11 012 02 1 Prepared by Bohler Printed 611012021 HydroCAEn 10,00-19 sfn M955 02010 HydmOAO SofMiie Solvtons LLC Peae 25 HWroCADO 10.00-£9 sfn 03955 02016 HvdroCA05oMsre Sd Oons LLC Pane 26 i Pond iP:Cultec System-01 Summary for Pond 2P:Infiltration Trench Hydrograph __ __ _ __ _ _ [001 WamIng:Qout>Qln may requIre smaller dior Finer Routing Y 12.01 cfs y- -- -_ - T i}i} i i i i i i i i i ■lyy Inflow Area 118,672sf,83,00%Impervious,ranow Depth= 3.27" for 10-yro ent ff,80eFs - - �1ff�145fL'Ai'88=,1;1Pr�{ $ - ©a di`d Wow - 11.57ors@ 12.06hrs,Volume- 31,786cf 11.57 cfs 1_ ® ' Out = 11,69 cfs 12,10 hrs,Volume= 3%786 cf,Atten=0%,La f.2 min u ' - - - - P97k [.... . ' flow c� 9= tbtge�5;3U8f Ow ded_ 0.02 cfs 12.10 hrs,Vaiume= 1,120 ct Primary 14.67 cfs a 12.10 hrs,Volume= 30,660 of _ - Rouling by Oyn-Star-Ind method,Time Span=0.00.72.00 hrs,dl�0.02 firs Peak EleW 261.44'@ 12.10 firs; Surf.Area=20551 Storage=148 cf u ? - -- - - -- - - - -- - - - Plug-Flaw detention time=3.5 min calculated for 31,778 cf(100%of Inflow) Centercf-Massdet.tme=3.6 min{82f.0-8i8.0) Volume tnvert Avan,Stora a Storage Desed don . . . Al 197.25' 80 cf 3,06'W x 20,00'L x 3,75'H Pdsmalofd 4 225 cf Overall.25 cf Embedded=200 cl x40.0%Voids ] 0 9 92 108.00' 250 15.0"Round plpe Storage Inside 47 0.00 cfs L=20.0' 113 201.00' 51 cf Trench Surface Storage IPdsmaGCVSied below(Reoaic) 0 1 4 TA ie415 156 cf TOWAvailable 910fAge ner iEpwfJ Elavatlon Sud.Area Inc,Store Cum.Slare (feet) (s0-ft) (cublo-feet) (cuhlofeetl 201.00 60 0 0 201'30 105 25 25 201.60 160 26 51 DaVlco Roullnn Invert Oulet QWms 81 Primary 201,10' 20,0'long x 0.5'breadth Broad-Crested Rectangular Weir Heed(feel)0.20 OAO 0.60 0.80 L00 Caef.(EngUlt) 2.80 2.02 3.08 3.30 3.a2 92 Discarded 107,25` 0.170 Wif FAltratton(Sandy Loam)aver Surface area Conducthfily to Groundwater Elovaton=197.20' 1C Isearded OutFlow Maur-0.02 cfs @ 12.10 hrs HW--201.44' (Free Discharge) -2=Exfihralian(Sandy Loam)(Controls 0.02 crs) denary CutFlow Max=11.66 Us a�12.10 hrs HW-261.44'TVV-0.00' (Dynamic ToUaler) =Broad-Crested Rectangular Wefr(Welr Controls 11.68 cis a 1.150 fps) M201047_Hydra PR-REVS Type11124-hr 10-yrRafnfa11=4.80" M201047_Hydro PR-REVS Type W24-hr 10-yrRafnfa11=4.80" Prepared by BOhlef Prated 6110rz021 prepared by Kohler Printed 6110rz621 HvdfoCADO 10.00-19 s1n 08955 02016 H1'dioCAC80mre,5ol4ons LLQ paa027 }ivdroCA�10.00.13 On 09S55�2018 FNdraCAP SOAware SoluiionS lLC 'one28 Pond 2P:Inflilratlon Trench Summary for Pond 3P:Cuttec Systern-02 Hydregragi: 190)Mining:Qcut>Qln may require smallerdt or Finer Routing _"-'(.'.),-;.1_I_1 _ 7177-1- ��_{_� 1871Warning:Oscilatioos may require smaGerdt or Finer Routng(soverhy=4) !.f9,t49ofs 3 ;-;1 t-yfyflOW-AYgq:s. l6fi72-9f- nosc=-aa .a ,, � Inflow Area 35,755 sf,65.24%InnIwrvious,Inflow Depth= 4.1V for 10.yrevent r7. 91.07.cf4. ;-;;-+-•-;;-•-« ;-; ;-) F,1 �1i,-J� � •a e- Inflow = 3,S8cfs@ 12,68hm,Volume= 12,248 e1 R Cuillow, = 3.02cfsQ 12.06hrs,Volume= 11,692c1,Allen=0%,Lag=O.Omin _ Discarded= 0.03 cfs Q 12.11 his,Volume= 3.814 ct 10 _ Primary - 3.90 cfs @ 12.06 hrs,Volume- 7,878 of 1. - F',-3-F',-f-t T;-I-}�-1-I-�;-,-r ;-t-F'4-44-4- Routing by Dyn-S1or•Ind method,Time Span-0.0042.00 hrs,d1-0.02 his 7 - - - - - - -- - - - Peak Elev=208.841@t2.1-1 his Surf.Area=2,375$i Storage=3,642 If .. l . 1-. ;-1 - Plug-Howdetenllan time=517.2 mfn calculated for 11.692 cf(05%of Inflow) i- �i-${-i----i-1 i-i-♦•ti-;-1-I-F i-1-}i-i i-Fi i 1-1� Censer-of-Massdei.time=490.0mIn(1,265.6.774.6) - Volume Inverl Aval,Slora a Slora c Descri ilan ° #1A 203,25' 1,686 cf 43,76W x 64.00'L x MWI-I Field A ] 6,005 cf Overal-1,791 ct Embedded=4.214 cf x 40,0%Voids r 0 s #2A 203,761 1,791 c£ Cultec R-1a0%LHD x65 Inside#1 Effective Size=29.8"W x 18.0`H=>2AS sf x 10.25'L=27.2 cf 0]4 a B ID 1]54 iB ie i01]14 is]a}7�]g43bb0 d04]44�4yy,570*6`A60676i 6v697071 Overall SEze=33,0"W x 18.5"H x 11.00'L wbh 0.75'Ow:dap Row Length Adjustment=10.76 x 2.65 of x 13 rows 43 201.60' 86 cf 4.00'0 x 7.00'H OCS-2 3,564 cf Total Available Storage Storage Group A created wkh Chamber Wizard Oevke RouIInO invert Ougel Devices #1 Primary 205.ST 16.0"Round Culvert L=35.0' CPP,m1lered to conform to fig,Ke=0.700 Inlet l Outlet Inver=205.35'1205.00' S=0.0i00'1 Cc,0.906 n=0.013 Corrugated PF,smooth interior, Flew Area=1.23 sf #2 Device 1 205.70' 4.0'long x ON breadth Broad-CraMed Rectangular WeFr Head(feel)0.20 0.40 0.60 0,80 $.00 CoeL(English)2.80 2.92 3.08 3.30 3.32 #3 DeVea1 204AU 12.0"Veit,Odncelilrata C=0.800 #4 Discarded 201.60' 0.170 rnlhr Exriilrallon(Sandy Loam)over Surface area Condutgl4ty,10 6mundwater Dlevatlon=201.25' 4iscarded outflow Mai-0.03 cis a 12.11 hrs HV0206.78' (Free Discharge) T-4=Exiiluation(sandy Loam)(Controls 0.03 cfs) Primary Ou1F1ow Maz-3.77 cls @ 12.06 his HW-206.50'TW-205.45' (Dyn rate Talhvater) t Cutvert(aarel Controls 3.71 cfs C 4.17 fps) 2=BroadLresled Rectangular Welr(Passes<0,42 Gs poienGal flow) =OrificelGrafe(Passes<3,87 cts potential now) ', M201047 Hydro PR•REV3 Type IN24-hr 10-yrRalrlfa11=4.80" M201047 Hydro PR.REV3 Type11124-hr 10-yrRalnfa11=4.80" Prepared by Bohler Printed 61101202f Prepared by Bohler Printed 611 012 0 21 K dmCAD810A6-19 s1e D89SS 02M l4vd.CAD Sofh-.Solodorvs LLC Pane 29 Hyd,.CAD®10.60-10 J.08955®2ald Nvd.CAD S.lb-a Solutions LLB Page 30 Pond 3P;Cultec System-02-Chamber Wizard Field A Pond 3P:Cultoc System-02 Chamber Model=Cultoc R-15OXWD(Cultoc Recharger01 SUM) Hydsog<aph Eifea%e Size=20.8'W x i 8.0"H=>2.65 s£x 10.25t=27.2 of OveraUSize=33.0"Wx18.5"Hxii.Oo'Lsvdh0.760veilaP 3.92 cfs`s�T - 1 ,-•-�,-• e° '+k Row length Adjustment=+0.75'x2.65 s£x 73 rows �Er�P,101 ArWt3B,765 SP Mar + v a 3.90crs 33.0"Wde+6.0"spacing-30.0'CC Row Spacing Or 8i3,5d2 c� S ChamberslRow x 40.25'Long+0.N Row Adjustment=52.00'Row Length+12.0"End Stone x 2= 54.W Base Length 13 Rows x 33.0"Wdo+6.0'Sparing x 12+12.0"Side Slone x 2=43.75'Base Wdth 6.0"Base+18.5"Chamber Height+6.0°Cover=2.54'Field Height 65 Chambers x27.2cf+0.7V Row Adjustment x 2.65sfx13 Rows=1,790.7 of Chamber Storage 6,004.7 of Field-1,790.7 cr Chambers=4.214.0 of Slone x 40.0%Voids=1,685.15 of Stone Storage Chamber storage+Stone storage-3,476.3 cf=0.080 of 0 saw Overall Storage Efficiency=57.0% Overall System Bite=54.00'x 43.75'x2.54' - - - - - - 0 2 4 6 9101314i61910?2Ib:d 133]]23!]63ip e3441d 435051'ASfi"Afi061 Ea 666bTp71 65 Chambers 222.4 cy Field 158.1 cy Stone ME 0101 i I i M201047_Hydro_PR-REV3 Type 1024-hr 10-yr Ralafa)l=-4.80" M201047_Hydro PR"REVS Typelf124-hr 25-yr Ralnla&6,00" Prepared by Bohler Primed 6110R021 Prepared by Bohler Pdnled 8ry012021 HydroGAD1210.00-18 sln 08955 02016 HudtoCAD Software SolWans LLC Pane 31 HydioCADlff 10.00-19 sln 08955®2016 HydroCAD Software Sofutitns CM pace 32 Summary for Link 13131:ON Time span=0,00.72,00 hrs,dt=0.02 hms,3601 polms Rupert by SCS TR•20 method,DH-SCS,Welghied-CN Inflow Area= 116,672 sf,83.00%lmpeMous,Inflow Depth= 3AW for f0-yrevent Reach rutting by Oyn-Stor-Ind melhad-Pond routing by Dyn-Slor-Ind method Idpow - 11.67 cfs® 12.10 hrs,Volume= 30.66001 Primary = 11.67cfs® 12.1011rs,Volume= 30,660 cl.Aften=0%,Lag=0.0 m3n SubcalcbmentPR01A: Runoff Area=35,755e1 85.2d%1mperv1ous Runoff Depth-5.30" Tc-6.0 m1n CN-94 Rono8-4.68 tfs 15,762 cl Primary oAllow=Inflow,Time Span=0.00.72,00 hrs,d1=0.02 his SubcalchmentPR6IB: Runon Area=80,917sf 01.01%impervlous Runoff Depth=5.30' Link DPI:DPI Tc=6,0n!n CN=94 Run0111--10,68ch35,716el Hydrograph Pond IP:Cuftec System-01 Peak Elev-206.71'Storage-5,746cf innovr-t5.26cfs 47,051 cr " . - - - - - - - - - -- - - - - - - blatarda,14,03ch 38480 Primary=11.96cr1 42,499cr secondary=2.73cfs 693cf Ovllion--14.72cfs 47.039 cf _ _ _ _ _ _ _ _ � 674:fs r, ' �w6 . .. • , . . a Pond 2P:InBliration Trench Peak E1aw201.45 Stma9e=149cf ln8ovr-11.00cfs 42,4990 `',�I f�Qw-1"4 a"i�a�iY 4 7#� Dncardad-0.02cfs 1,195c€ Pdmary-12.06cfs d1,304cf Outflcvr-12,08cfs 42,499 of I- M Pond 3P:Cuftec system-02 Peak Elav207.42'Storage=3,549cf InUa--4.68tN 16,782 c1 T ` `` Discarded=0.03 cfs 3,875 cl Pdmary=4.68 crs 11.346 cf OA(ow=4.70 cfs 15,221 cf LinkUPI:DPI hnmr=i4.77 d1 41.07 c€Priary-14.77 cfs 41,997 cf Total Runoff Area=116,672 sr RunoffVolme=61,497cf Avamffa Runoff Depth=5.30" - - - 17.60akPervkms-18,834st 83.00k Impervious=46,838sf - - - - - - -- - - ......... - - 1 0 1 4 9 9 to t2 i�te is 50 zr 2�43 ae 90 al Sa jg ye a�.i2<aHa3 S15�51:b 516a 62 G�6a e9le]i 7hr+tna„R1 , i M201047 _HydrePR.REV3 Type III24-hr 25-yrRafnfafl-6.00" M201047 Hydro MREV3 Type Ht24-hr 25yrRelnfa(f=6.00" Prepared b_y Bohlef Printed 8110r2021 Prepared by Bohler Printed 6110=2£ 110faC.00MC0-19 sIn 069550201a HvdroCAD Sofhvdre Solutions LLC Pena 31 HvdraCAD210.00-19 Stu 0895502016 Hvd.CAb Scft—.Sohtians LLG Noe 34 Summary for Subcatchment PROM Summary for SDbcatchmanl PROif3: Runoff = 4.68 cfs @ 12.08 hm.Warne= 15,782 cL Depth-5.30' Runoff = 10.58 cfs @ 12.08 hrs,Volume= 35,716 of,Depth=5.30" Runoff by SCS TR-20 method,UH=SCS,Wghted-CN,Time Span=0.00-72.00 hrs,dt=0.02 hm Runoff by SCS TR-20 methad,UH=505,Welghted-CN,-nme Span=0.00,72.00 hrs,dl=0.02 hrs Type III24-hr 25-yr Ralnfat=6.00" Type III 24,hr 25,yr RalnraV6,00" Area(s@ CN Description Area(s£1 CN Desr%Oon 3,475 98 Roofs,HSG C 14,682 98 Rears,HSG C 27.002 98 Paved parldng,HSO C S£,670 98 Paved parldng,HSG C 6.278 74 n75 h Gress cover,Good HSG C 14,556 74 �75%Grass cover.Good,HSG C 35,755 94 Mfghled Average 60.017 04 M, ghted Average 5.276 14,76%Parlous Area 14,556 17.99%Pervious Area 30.477 85.24%ImpeMous Area 66,361 82,01%W"vZous Area Tr. Length Scope Ve1ec"rty Capacity DesWplion To Length Slope Velocity Capacdly Deseripllon (mJn) (feet) Offs) (Nseol (cfs) Wn) (feed (MR Ovsec) (cfs) 6.0 Direct Entry,Ulrect 8.0 Direct Entry,Direct Subcatchmant PROM Subcalchment PRO1B: "ograph Byd o.goph .- '-+-i'i'i'7-r_{-i-{-{-.-'r.F-.- � i-ri-{-{-i-*- ----- , e- d.e8trs [ )) f r f FBI-- 10.58cfs 1' ©e,�n u tip i�id hi 'Ty�Q ilt 2 -itr i5=yr fiainfail=s ob'� L A,A, 25rr Eafrifatl=s ►h'd :l Unbff M a_36�7Bp pf d - _4-T T- -,Rtj 16 = tif� f A� iti8;t6;76R - ;ft0j Ot€'vpIU a'$c,17 �t i . E . i .TcrB.o tn'Pri ]L L' L L! L�. �N=g4 a 3 a- a ]4 6 819131d 151d 1a]]]IA33]d9]34]8 d991 fit d3N 535a 3]Sf 56586]d]d4A WNi1 ] fi 85a 1]14581810]]]i ld id l'13]]4]3]941 a1N 9d 4d S]5I 5456'�d 50616156 Ld 13 i1 ns h,owd rmr moM.i I i M201047�Hydro_PR-REVS Type III 24-h(25-yrRaMlal!=6.00" M201047Hydro_PR-REVS Type W24-hr25-yrRa(nfaN=&.00" Prepared by Bohier Printed 8f101202t Prepared by Bohler Printed 6110r2021 ti r rA0O 10,00-19 sin 08555 452016 H droCAD Solhvare Solutions LLC Pang 35 Hydro ADO 10 00.19 sM 08955®2016 H droCAD SoUite Sok6ons LLG Page 36 Summary for Pond 1P:Culteo System-01 Device Routing Invert Outlet Devees #1 Primary 200.00' 15.0"Round Culvert InlowArea= 118,672sf,83,001AImpervious, InflewDepth= 4.84' for 25-yrevenL L=33.6' CPP,mderedto conform toFit,Ke=0.700 Inflow = 15.24 cis @ 12.08 hrs,Volume= 47.061 cl Inde1!ou11eE Inved=200.00'!198.00' S=0.0606 Y Cc=0,000 Outflow 14,72 cls 12.11 hrs,Volume= 47.039 at,AILen=4%,Lag=1.3 min n=0.00 Comlgated PF,smooth Interior,Flow Area=1,23 si Discarded - 0.03 cis 12.11 Ins,Volume= 3,848 cf 02 Device 1 205.10' 4.0'long x 0.5'breadth Broad-Crested Reclangular Weir Primary = 11.06 cis 12.11 his.Volume= 42,499 cf Head(feel)0,20 0.40 0,60 0.80 1.00 Secondary= 2,73 cfs @ 12,11 ins,Volume= 693 ct Coat(English)2.80 2.92 3.08 3.30 3.32 #3 Secondary 206.60' 10.0'long x0.5'breadth Broad-Crested Rectangular Welr flouting by Dyn-Star-ind method,Tlmo Span=0.00�72-00 hrs,dl=0.02 hrs Head(feet)0.20 0.40 0.60 0.80 1.00 '.. Peak Nov-206.71'@ 12.11 hrs Sud.Area=5,044 at Storage-5,746 cf Coal,(English)2.80 2,92 3.08 3,30 3.32 44 Device 1 203.135' 12.0"Vert.0rifco/Grato X 2.00 C=0.600 Plug-Flow delentfon time=137.5 min calwisted for 47.039 cf(100%of inn") #5 Discarded 199.00' 6.170 inlhr Exflltrallon{Sandy Loam)over Surface area Cemer-at-Mass deL 9me=13T.2 min(917.0.779.8) ConduciWy to Groundwater Flevation=197.20' Volume €nvaA Avan.81oraga 81o[age Descr€nnon pp£scerded OutFlow Max0.03 cfs*12.11 hrs HW=208.71' (Free Discharge) #1 A 202,75' 2.528 cf 30.75 W x 115.60'L x 2,64'H Field A '-S=Exnitrallon(Sandy Loans)(Controls 0.03 cfs) 9,027 cf Overall-2.708 of Embad0ed=6,32t c€x40.0%Voids TOryOrificelGrale Ou1FLow Max--I cis 12.11 hrs HV�208.71'TW=201.45' (Dynamic Ta3Waler #2A 203.25, 2,706 ct Cultec R-180XLHD x 09 Inside#1 (Dyn ) Effective Size=29.8'W x€8.0"H->2.65 sf x 10.25'L-27.2 cf lvert(Intel Controls 11,"cfs Q 9.74 fps) Overall SL e=33.0"W x 18.6'N x 11.001-with 0.76'Overlap Broad-Crested Reclangular Weir(Passes<21.05 cfs potential now) Raw Length Adjustment=+0.75'x 2,65 sf x 9 rows (Passes<i I,81 is potential now) 43 £99.00' 44 cl 4.09'D x 7.00'H 0CS4 x 0.5 94 205.00, 883 c( Surface pending(W0141(Pyramidafy.tsied below(Recale) 4econdary OWN=Mox-2,63 Us 4 12,11 hrs HVV-2C8,71'1W=0,0V (Dynamle Ta[Malel) 45 208.50' 260 c( Surface Pending(CB401(Pyramidaly-fsted below(Recalc) _1=Broad-Crested Rectangular Weir(Wefr Controls 2.63 Us 4P 1.27 fps) #6 20,00' 188 cf Surface Ponding(CB-11,1,(Prismallc)Listed below(Rmic) 6,410cf Total Available Storage Storage Group A created whh Chamber Wizard Elevation SurfAfea Ina.Store Cum.Slora Wet.Area (feet) (500 (cubio-fee) (cubic-foe[) (61-0) 205.00 4 0 0 4 208.30 400 59 69 400 207,00 1.600 624 603 1,503 Elevation Sud.Area Ine.Store Cum.Stolo VmArea Keel) (Se-11) (cublafeen (cub]afeeL) (sq-n) 206.50 4 0 0 4 207.00 1.480 260 260 1,481 Flevation Sud.Area Inc,Slare Cum.store (feet) (s0-n) (cublo-feel) (cublo-feet) 206,09 95 0 o 206.80 235 132 132 207.a0 325 56 188 M2D1047_Hydro_PR-REV3 Type 11f24-hr25-yrRain7al1=6.00" M201047_Hydro_PR-RPV3 7ypeHi24-hr25-yrReinra11=6.00• Prepared by Bohler Printed 6M012021 Prepared by Bohler Printed 6r10R021 H droCAD9 10.00-19 rdn 06955 02016 QroCAC SoNvam 8ot,Uons LLC HudroCAA0I0.00-I9 s!n OB955 02056 HvdroGAH Soklvzre SoluSans LLG pane 38 Pond 1P:Cultec System-01•Chamber Wizard Field A Pond V:Cultec Syslem-01 Chamber Modal=Cultec R-460XLH0(Cultec Recharger®160XLH0) NI .I Iph Fffectku Siza�29.8'4Vx 16.0"H=>2.65sfx 10.251.=27.2 cf 15.26 cfs - — - '-`-".`-"-'T'-� Overall Sbra=33.0Ndx 18,511 x11.WLwrlh0.7VChtedap - Row Length Adjustment=+0.75'x 2.65 stx 9 rows '14%cfs _ �lii(four `P�aleV20s7i1t ®xA� 3301 Wdet 6.0"6pac1ng=39.0""ROW Spadng , :-;-� -'-P--;-' .'-'; s;$tbY61�e.`-5;7dB�f- „ 11.96cfs� 14 Charnwa,!Row x 10.25`Long+0,75'Roof Adjustmanl=113,50'Row Length+12,0'End Stone x 2= + -- - -'- - -'- - 115.50'Bese Length 1z _ F � _ 9 Rows x33,0"Wde+6.0'Spacing x8+42,0"Side Stone x2=30.75'Base Wdth B.0"Base+16.5"Chemher Heigh[+6.0"Cover=2.54'Field Heigh[ $10 - - - - 99 Chambers x27.2 Ct+0.75'Row AdNslment x 2.65 sf x 9 Rows-2,706.0 O chamber storage 11 - - - - - - -- -- 9,027.0 cf Flout-2,706.0 cf Chambers=6,321.1 of Stone x40,G%Voids=2,528A cf Stone Storage s 2.73 CIS Chamber Storage+Stone Storage=5,234.4 cf=0.120 of = ! a Overall storage Fihdoncy=58.0% 1 " Overall System Size-115.50'x 30.75'x 2.54' 00 48dt012,4i6,SN321f:iId 3o333,]c 344]<2NSd<150525,`I EB 60b2fiA63Edret2 99 Chamber 334.3 cy F7eld 234.1 cy Slone 1EF1�'r=' '1ljf€: �pt �1i1. Ig[�iEr�, i '. M201047 Hydro�PR•REV3 Type III24-hr 25-yrRafnfal:14.00" M201047 Hydro PR-REVS Type Itf 24-hr 25-yrRainfar1=0.00" Prepared fly Bomar Printed 611012021 Prepared by Bohler Primed 911012021 N droCA00iG00-19 dn0e955 Q52016 dr CADSoNw;e Solutions LLC HydreCAD510.00-10 sin 08955 02016 HydroCAf7 softy-e Solutions KC Pane 40 Sumrnary for Pond 2P;Infiltrallon Trench Pond 2P:Inffltratlon Trench (001 Warning:CoubQln may require smailerdl or Finer Routing Rydragrayh [671Waming:Oscillations may require smaller dl or Finer Routfng(severity=l) _ ss.na.,r , tnflawArea= 118,872 af,83.00%Imperious,Inflow depth= 4,37" far 25-yr event 12.08 cfs_ Ji1Fldv}rYk i?$672. f- inflow 11,96 cfs 8 12.11 his,Volume= 42,499 cf 13 12.08 cfs �.; ; ;-I-;- 4-1 Outflow - 12,08efs@ 12,f0his,Valumo= 42,499 al.Allen=0%,Lag-0.0 min ) f 1 f 9a 'CI$1�>zfl;E-'`� •� Discarded 0.02 cfs 12,10 his,Volume= 1,195 CfG - Primary = 12.06 Os 12.10 his,Volume- 41,304 of - - - - - - )- J-1 ^-�-L ;-�-+-•-; ; Routing by Dyn-Slur-Ind method,Time Span=0,00.72.00 firs,dl=0.02 him Peak Elev=20€A5'(M 12.10 hrs Surf.Aren=207 sf Storage=149 of a r Plug-Flax deleotfon lime-2.6 min calculated for 42,487 cf(100%of Inflow) o, - Center-of-Mass det.time=2,8 min(613.4-610.6) - - - - - -- _ Volnmo Invert Avall.Stora a Storage Descri lion 91 197.25' 80 cf 3A0'W x 20.001 x 3.76H Pfrsmatoid a 225 cf Overall-25 cf Embedded-200 cf x 40.0 A Vofds 2 92 198.00, 25 cr 15.0"Round Pipe Storage Ins€de#1 g '.. L-20.0' 03 201,00' 51c1 TrenehSurfaceStora a Prismatic sled below ecalC 0246e1o+2i4i6,'axii2�eis2avii3rsajsai:za<sae:asxd,:sxcos2awssrori 156 cr Total Available Storage Elevation SUrf.Ares InaStore Cvm.Slore _fleet) (sa-11) fcubfc-feeh (whic-feel) 20U0 60 0 0 201.30 105 25 25 201.50 160 26 51 Device Routing Invert OWel Devices #1 Primary 201.10' 20.0'long x 0,6'breadth Broad-Crested Rectangular Weir Head(feell 0,20 0.40 0.60 0.80 1.00 Coef.(English)2,80 2,92 3,08 3,30 3.32 #2 Discarded N7.26` 0.170Innir ExrThratlon(Sandy Loam)over Surface area Conducti»ty to Groundwater Elevation=197.20' VIscarded 0130Ow Max-0.02 cfs®12.10 hrs HW-201,45' (Free Discharge) 7=EOiiiiration(Sandy Loam)(Controls 0.02 cfs) pprmmry Outflow Max=12.04 cfs 9D 12.1a his I-M�201.45'NY0.00' (Dynamic TslNrater) '=-1=Broad-Crested Rectangular Weir(Weir Controls 12.04 cfs 1.71 fps) WNW Hydro_PR-REV3 Type fit 24-hr 25-yrRainfait=-6.00" M201047 Hydro Pit-REV3 Type ill24-hr 25-yrRalnfallw&00" Prepared by Sohler Printed 6r10R021 Prepared 6y Bohler Printed 8110n021 Hv4foCA€x.010.00-19 ern Q5955®2C18Hxdr CADSaft-Solutions LLC page 41 HWraCADJ 10.00-f9 sin 06955 Ii2016 HOW'AO Sortvare solutions LLC Pace 42 Summary for Pond 3P;Cul(cc Systevl-02 Pond 3P:Cultee System-02-Cho miter Wizard Field A [90]Waming:Qout,Qin may recioke smaller dl or Finer Routing Chamber Model=Cultec R-150XLH0(cullee Rechargerm160XI-W) 187]Warning:0sa-0ations may regv]re smallercit orF€ner Routing(severity-2) Efrecthe Stze=29.8'W x 18.0'H-2.65 sf x 10.25'L=27.2 cf Overall Size=33.1)'W x 18.5"H x t 1.001-with 0.75'Overlap Inflow Alea= 35,756 si,85.24%€mper4ious,Inflow Depth= 5.30" for 25-yr event Row Length Adjustment=+0,75'x US sfx 13 rows Inflow a 4.68 cls 12.08 hrs,Volume= 15,782 cf Outflow = 4.70 crs 12.08 hrs,Vofuma- 15.221 cf.A11ep=0%.tag=0,0 min 33.8"Wlda+6,0"Spacing=39,0"OC Row Spacing Discarded 0.03 Cis @ 12.10 hrs,Volume= 3.875 cf Primary = 4.68 cis @ 12.08 hrs,Votumo= 11.346 cf 5 ChambeeslRow x 10.W Long+0.75'Row Adjustment=52.00'Raw Length+12.0"End Stone x2= Routing by Dyn-Star-Ind method,Time Span-0.00.72.00 hrs,dt=0,02 hrs 64.00'Base Length Peak Elev=207,42'@ 12.10 hrs Surr.Area=2,376 sf Storage=3,549 cf 13 Rows x 33.0"Wide+6.0"Spacing x 12+12.0"Slde Slone x 2=43.75'Base Width 6.0"Base+13,5"Chamber Height+6.0"Cover=2.54'Reld Height P€ug-Flowd,sWilon time=408A"n eatcu)ated for 15,217 cf(M%cf Inflow) Canter-or-Mess det,lime=387.5 m[n(1,156.0-768.5) 65 Chambers x 27.2 cf+0.75'Rmv Adjustment x2.65 sfx 13 Rows=1,790.7 cf Chamber Storage Volume Invert Avail.SIW80e Storage Description 6,004.7 cf Hold-1,790.7 cf Chambers=4.214.0 cf stone x40.0%Voids=4,685.6 cf Slone Storage #lA 203.25' 1,M cf 43.76'W x 64.00'L x 2.64'R Field A 8,005 cf Overa0-1.791 cr Embedded-4,214 cf x 40.0%Volds Chamber Storage+Stone Storage=3,476.3 d=0.080 of fa2A 203.75' 1,79£cf Cultec R-160XLHD x65 inside fat Overall Storage Efficiency=57.0% ElfdcVve Size=29.8'W x 18.0"H-2,65 sfx 10-25'1-=27.2 cf Overall System Size=54.00'x 43.75'x 2,54' OLerall Size=33.0'Wx 18.5'H x 11.00'L wAh 0.75'Overlap Row Length Adjuslmenl=+0.75`x 2.85 sfx 13 rows 03 201.eo' 83 cf 4.00'D x 7.00'H OCS-2 65 Chambers . eA 3,564 cf Total Avail 156.1 able Storage cy 58 cy Stone Storage Group A created with Chamber Wizard Device Rout€ng Invert bullet Devices - 41 Primary 205.35' 15.0"Round Culvert - ----- - a L=35.0' CPP,mitered to conform to fin,Ke=0.700 m €nlel f Outlet"mTd=205,3V 1205,00' S=0,0100 V Cc-0.900 s - - n=0.013 Corrugated PE,smooth Interior,Flow Area-1.23 sf a s a rig Dovlce f 205.70' 4.0'long x 0.V breadth Broad-Crested Rectangular Weir e 3E Es Head(feet)0.20 0,40 0,60 0.80 1.00 "" _ Coef.(EngSsh) 2.80 2.02 3.08 3.30 3.32 S3 Device 1 204.40' 12.0"Vert.OditceiGrale C=0.600 1E g "" d4 Discarded 201.60' 0.470 InItrExiiiltrallon(Sandy Loam)over Surface area ., ConducIMty to Orcundwaler Elevation=201.25' (liscarded Otaflow Ma x=0 (a),03 cis 12.10 hrs HW-207.41' (Free Discharge) T d=EYffliraflem(Sandy Loam)(Controls US cis) x rfmary OwFlow Max=4.32 cfs®12.08 hrs HW=207.36'TVS208.05' (Dynamic Tallwater) Culvert(Iniel Controls 4.32 cfs(M 3.52 fps) 2=BroadCrested Rectangular Weir(Passes<22.60 Us potential flow) _ 13 3=OriticelG rate(Passes<3.13 cls potential flow) _ .. I i I i M201047_Hydro_PR-REV3 Type III 24-hr2S-yrRainfa11=6.00" M201047—Hydro PR-REVS Typo III 24-hr26-yrRainfall=S.00" Prepared by Bahter PdnEed 6ry0R021 Prepared by Bohler Pfinled 611 012 0 21 HydroCAM10A0-19s1n OSSS50201SITYdroCA[I Sa@ware 6olufons llC Peo643 HvdroCA6�10.OD-£9sl-n-OB$55®20181{yd.CADSoMrare SoMonsi—W Paee 44 Pond 3P:Cuftec Systan.02 Summary for Link UPI:UPI Hydmgraph Inflow Area 116,672 sf,83.0MA lmpeMous,Innaw Deplh= 4.32" for 25-yrevanl i- �nR^[ Inflow = 14.77 cfs® 12.IO hrs,Volume= 41,897 ct :+4.70 cf$ to m Primary = 14.77 cfs® 12.10 hre,Volume= 41,907 ef,Allen=",leg=OA min Ii1fIQw �rLY5i�55P; ®r,m,N s 4.68 afs - - - - - i 1 Primary aulnow=fnnow,Time Span-0.00-72.00 Ins,dt=0.02 his �fdr8c�e>3, �9 Cf Link UP1:UPI Hydruguph 5 a -- - - --- - - - - -'- - - - --- - - - - - - ai,i-, 11 pN ' 44,77.ifs _4- - - - - _ - - -- �t�tl�Wkfea=�7G�72- F- 2 1/.' in - - - - - - -- - 00 2 4 5 9 401214 S61e tl A2 A426283J 02J4351B4]tl44 tad4•AS1:456:flfA 62G 6d5d�e Y2 ¢ - -- -- - - - - - - -- n�m T. 1- 00 2/A did 42 i456 49�b Ai28 As An i2 i4 a4 i64o a u m U U E6 r042 nm.Inovnl i i � I M201047 Hydro-PR-REVS Type III24•hr 100 yrRafnfalf-8.60" M20104LHydro PR-REV3 Type f024-hr 100yrRafnfalh6.60" Prepared by Kohler Printed 671012021 prepared by Denier Printed 611OW21 H4M1oCAD©10.00-t9 sfn 08955 02016 HydmCAD Saf—SQiu i—LLC Page 45 Hyd.c;ADO 1e.00-19 s1n 08955®2016 HvdroCAD Sorwaeo SoWons LLC Page 46 Time span-0.0042.00 hrs,dt=0.02 his,3601 polats Summary for Subcatchment PRO1 A: Runoff by SCS TR-20 method,UH=SCS,Welghted-W Reach fouling by Dyn-Stor Ind method-Pond routing by Dyn•Stor--Ind method Runoff - 6.81 cfs @ 12.08 hrs,Volums= 23.475 cf.Depth=7.88" SubcatchmCOtPR01A: Runoff Area=35,755$f 85.24%ImpeMous Runaf1Depth-7.88" Runoff by SCS TR-20 method,UH=SCS,Vdeighled-CN,Time Sp9n=0.00-72.00 firs,dt-0.02 hr5 Tc=6.Onig CN-94 Runoff-�.eicN 23.475cf Type III 24-hf 1Myf Relnfslk8.60" Subcatchmem PR01R: RunotrArea-80,917sr 82.014AImpervous RunoffCepth=7.a6' Area No CN Dascon80o Tc=B.Omn C1,1=94 Runoff=15,42cfs 53.127 c1 3,475 98 Roofs,RSG C Pond 4 P:Cultec System-04 Peak Elev-208.96'Storage-6,272 cf lnfl�2217 cis 72,O56 cf 27,12 08 PavedpaddOg,HSve,GD 7.Discarded-0.04 cfs 3,932 cf Pdma"Z23 cfs 63,893 cf Secondary J,i3 cfs 4,209 of Oolflwr-2139 cts 72,034 cf 5755 74 \75%tedA rage Ggod H50C 35,755 B4 V4Hlghled Average Pond 2P:Infiltration Trench PeakElav-201.48'Storage=149 cf €nflav=12.23 cis 63,893 cf 5,218 14.76%PeMous Area Discarded=0.02 cis 1,312 cf Pdmary--122Z cis 62,581 of ONRo•,r-12.28 cfs 63.893 cf 30,477 85,24%Impervious Afea Pond JP:Cultee System•02 Peak Elaw20&.68'Storage 684 cf hlko -8.81 cis 23.475 c1 To Length Slope Velocity Copafity DeWpoon Dlscarded-O.03 cfs s.oao cr Primary--6.76 cfs 18,929 cr Outflo,-6.79 cfs 22,909 cf (min) (feet) (NR) (fusee) (CIS) 6.0 Direct Enlry,Direct L€nk DP1:DP3 tnfloyr-21.29 cis 68.700 cf Mnary-2f.29 ch 66,700 cr Suhcatchment PROM Total Runoff Area=116,672 sr Runoff Volume=76,603 cf Average Runoff Depth=7.88" 17.00%Pervlous=19,804sf &3.00%Imperv1ous=96,85&sf ' ....... _ e 1,• 6.ef cTs - -- -- - - - - - - - -�- - . . . . f pd E(I 1�tC 1dO-yr R in#a11=8:60' ---------a 1-i-�---i-f-'-�-F-h-h-�-F-r•-yF3u'n#71f fiarea�-�5;7�5�i�t_ Q d< e L r05i 14561E h111232e}]3]3134353E 61 e14/[5 i9 ya S1 r.1 S55B 60 di U66 Hi0�, Tame thwnj M201047 Hydro PR-REV3 Type HI24-hr 140-yrRalnfal1=8.60" M201W Hydrq_PR"REVS Type III24-hr ft10-yrRainfal1=8,60" Pfepated 6y Bohler Printed 611012021 Prepared by Banter Printed 6 11 012 02 1 droCAD®10.00-19 sin 08955®2076 N dreCtrO SORvare BoluYans LLCPone 4Z }€droCArM 10A0-19 sin 08955®2016 H MCAD SoU..S.ffim LLG page 48 Summary for Subeatchmant PROM Summary for Pond 1P:Cultec System-g1 Runoff - 16.42c(s@ 12.08hrs,Volume= 53,127 c1,Depth=7.8a' Inflow Area MAU sf,83.00%In9per Acus, Inflow Depth= Mt' for 100•yr event Inflow - 22.17 cfs® 12.08 hrs,Volume= 72.0560 Runoff by SCS TR-20 method,11H=SCS,Welghlad-CN,Time Span=0.00-72,00 hrs,dt=0,02 he$ OufOow = 21.39 cfs 12.11 has,Volume= 72,034 cf,Allen=4%,Lag-1,3 min Type III 24-hr 1Myr Ralnfall=8.60" Discarded= 0,04 cis 12.11 hrs,Volume= 3,932 cf '. Primary = 12,23 cfsQ 12.11 hrs,Volume= 63,893 cf Afea..(sfl GN Oescdpron Secondary= 9,13 cfs@ 12,11 hrs,Volume= 4,209 cf ' 14,682 98 Roofs,HSGC 51,679 08 Paved parldng,MSG C Rooting by Dyn-Slor-Ind method,Time Span=0.00.72.00 hrs,d1=0.02 hrs 14 558 74 >75%Grass cover Good HSG C Peak Elav=206,96'@ 12,f I hrs 6urf.Area=6,517 sf Storage=6,272 at 80,9f7 94 Welghted Average 14,556 1711)"Pervious Area Plug-flaw detenikon fime=95.3 m1n calculated for 72,0€4 cf(100%o1 lalow) 66,361 $2.01%Impervious Area Center-of"Mass del.time=05.8 min 4867.0-771.2) Te Leng81 Slopa Velocity Capacity Description Volume invert AvalLStorano Slofacie Description min feet f[Al Nsac cfs #1A 202.75' 2,528 cf 30.75'W x ti5.5Q'L x 2.50f Field A '. 6.0 Direct Entry,Direct 9,027 cf Overall-2,706 cf Embedded=6,321 cf x 40.0%Voids #2A 203.25' 2,706 cf Caltec R•150RLHD x 99 InsEde 41 Subeatchmant PROM Effedive Size=NAM x 18.0"H=>2.65 sf x 10,2VL=27.2 cf Overall Size-33.0'W x f Ub H x I t.WL with 0.7V Overlap 91yd,ograph Row Length Adjustment-+0,75'x2,65 sf x9 rows #3 109,00, 44 cf 4,00'D x 7,00'H OCSA x 0,5 t5.42 cfs - - - - -- - -- - ' - - - - - 13-1— #4 205.9G' 683 cf Surface Panding 1WQI-I)(Pyramidal)Lisled below(Recale) -�-� r�-1-?-(-r-r�r r r r ,-,- 1 C 9u ace Ponding{C8-18)(Pyremidal151ed belov!(Raoalo) #5 296.50' 280 d' -]1E:_ #8 206M' 188 cf Surface Panding,G9.141(PdsmallcYTsled below fRecale) If i-',-i-i-i ' ;16bNiA91661ki'6M: 6,410cf Total Available Storage Storage Group A created with Chamber Wizard Elevation Sud.Area Iblo-fe l) Cufo-feee WaLRrea (a6lo-ffeel) [cubfo-ffeel) !so-01 __ _ - 4 0 0 A _ __ _ _ _ _- 200.30 400 59 59 400 207.00 1,500 624 883 1,503 d _ _ _ . .. ;_J.;_�_�_1_LL Elevaton sudN a51 ea 1nore Cum,Slara WeLArea ) ' 44 ---- - - -�-1-4-1-F- -- -rreel s-8 cublofeel cable-feel 5•fl - -- - - -- - -- - 206,50 4 0 0 4 - - - - - -- - - - - - - - - - 207.00 1,480 260 280 1,481 d 6 d101]1d 1919 M]]]dM]d101]3d 393l n��]NWai 505a 6d rb'4W6)6/E6 F31J)] Elavallon SuR,Area too-State Cum.Stose T_tac ) (feels (sq-01 (cuhio-feell (cublo-feet) 206.00 95 0 0 208.80 235 132 02 ' 207,00 325 58 188 M201047 Hydro PR•REV3 Type HI24-hr 100yrRainfa&8.60" M2010V HydrowPR-REVS Type 11124-hr 100-yrRalnfall=-8.60" Prepared by Sohler Prinled 611012021 Prepared by Bohlar Printed&1012021 HvdroCAM 1000-19 sin 08955 02018 ndroCAt78aNraro Balutions LLC Paae 49 Hi,?roCADID10.OMt9 srn08955 02Oi5HvdcoCA95c,a,e Solvtlans LLC __...._Paaa54 Device Routing Invert outlet Devices Pond'IP:Cultec System-01-Chamber Wizard Field A at Primary 200.00' MO"Round Culvert L=33.0' CPP,mitered to canfomt to fill,Ke=0.700 Chamberflodel=Cutter R•150SLHO(Cultec RechargerOiSOXLHO) lalat 1 outlet Invert=200,00'7198.00' S-0.0e06 7 Cc=0.940 F1fedM Size=29,8"W x 18,0"H=,2.65 sf x 10.251-27.2 cf n=0.013 Corrugated PE,smooth Interior,Flow Area=1,23 sf Overall Size=33.0"W x 18.5`H x 11.091-with 0.75'Ovadap 02 Device 205.10` 4.0'long x0.8°breadth BroadCresled Rectangular Wolf Row Length Adjustment=+0.75`x2.65 sfx 9 roars Heed(reel)0.20 0.40 0.60 0.80 1.00 Coal.(EngMh)2.80 2,92 3.08 3.30 3,32 33.0"Vde+6.0"Spacing=39,0"C-C Raw Spacing rid Secondary 206.50' 10.0'long x 0.5'hreadth Broad-Cresied Rectangular Welt Head(feet)0.20 0.40 0.60 0.80 IAO CoeL(Engrg hj 2.60 2.02 3.08 3.30 3.32 11 ChamberslRow x 10,25'Long+0.75'Row Adjustment=113.50'Row Length+12.0"End Stare x 2= 94 Device 1 203.85' 12.0"Vert.OdticelGrate X 2.00 C=0A00 115.50'Base Length a5 Discarded 109.00' 0A 70 inlhr ExOIrration{handy Loam)over Surface area 9Rows x33.0"hide+6.0"Spacing x 8+12.0'Side Slone x2=30.75'13ase Wdth ConduclMy to Groundwater Llevatfan=107,20' 6.0"Base+18.5"Chamber Height+6.0"Cover=2.54'Fleid Height j 21scarded OUIFfow Max=0.04 Us @ 17,11 hrs HW=208,95' (Free Discharge) 99 Chambers x27.2 cr+0.75'Rm Adjustment x 2.65 51 x9 Rows=2.706.0 cf Chamber Storage T--5=17AR(ation(Sandy Loam)(Controls 0.04 cis) Jdmary OutFlow Max=12.23Cfs@12.11hrs HW-206.95'TW=20t.45' (Dynamic Tollwater) 9,027,0 cf Field-2,706.0 cf Chambers-6.321.1cf Slone x40.0%Voids-2.524,4 cr Slone Storage -Culvert Onlet Controls 12.23 cis 0 0,95 fps) Chamber Storage+Stone Storage=5,234.4 cf=0.120 of M2=6road-Crested Rectangular Weir(Pesses<33.48 ds potential flow) Overall Storage Efficiency=58.0% =OrificelGrate(Passes<12.20 cfs po(em€al Flow) Overall System Size=I16.6V x 30.75'x 2.54' 4ecdndary OutFlow Max=9.02 cfs @ 12.11 his HW-206,95'TrA OXV (DynanUC Tallwaler) 7=Braad-Crested Rectangular Weir(Weir Controls 9.02 cis A 1.991ps) 99 Chambers 334.3 Cy Field 234.1 cy Stone €'lo [r,j �ttll 1i `y I rrs l d I- [s iz pEj;'s i i MM047 Hydro PR•REV3 Type III24-hr 100-yrRaidfe8=8.60" WNW_Hydro,PR•REV3 Type R129-hr i00-yrRafnfall=8.60' Prepared by Bphlor Printed 61€012021 Prepared by Bohlor Primed 611012021 H droCAr0 10.M10 sin 08955®2016 H dfoCAD Sakware Solvtons LLC ...... Page 61 H droCAVS)i0.Mi0..s1g 98955 02010 H droCAD Software So vuoas LLC Pago 6.2 Pond 1P:Cultoo System-01 Summary for Pond 2P:Inflltratlon Trench Nydragraph , 100)Warning:QoA>Oln may require smallerdt or finer Rouling .-:-I 22J7cfs _;T I i 1 T; i ;-' InrowArea= 116,67251,83.00%finpervous,InflowOeplh= 6,57" f0 far 0-yrevent _zl.aaers,;- _ ;Jn IoluArea�f,4�,61 _s�- ■o _ la�y InFovr - 12.23 cfs @ 12.11 hrs,Volume= 83.897 cf 21V�2A13:9? - Outflow - 12.28 Us 12.12 hrs,Volume= 63,893 cf,Alten=0%,Lag=a,6 min T Discarded= 0,02 US@ 12.12 his,Volume= 1,312cf igtbPai,geS; -�f- � ,S Pr€Mary = 12.26 cfs M 12.12 hrs,Volume= 62,581 of l Routing by oyn-Slorrind melhod,Time Span=O,Od72.00 hrs,dt=0.02 hrs �a = - Peak Elew 201.46' 12.17 hrs Surf.Area=208 sf Store e=€49 ci 12.23 cfs '1-� 9 14 Piag-Flow detention time=2.0 min calculated for 83,875 cf(100%of loflaw) 13 '-�'-'"-r'-Sr - - :T;-t% - Center-of--Mass del.limos 2.l nein(602.8-600.5) 9.13cfs, f,- - s Volume Invert AVag.Slorane Stoiene Descripfloa #€ 197.25' 60 cf 3,06'W x 20,00'L x 3.75'H Pdsmatold a 225 cf Overall-25 cf Embedded=200 of x 40,0%Voids s #2 i08.00' 25 Cr iSN'Round Pipe Storage Inside 01 2 La 20.0' _, ___#3 201.00' 61 cf trench Surface Wfatle(PrismaticlListed below tRecale) a x x io+x+i+s+exo-nia:�iavaxdJ3E 3s nixuae xe sosxsiraeacae2earaeaiorx 166 cf Total Available Storage nme teo�r+l Flevallon SurfAreo Inc.Slore Cum,81me (feetl _ (sq-fl),,,,,,,,,,,,(cublo-fee0 (c blc-feet) 201.00 430 0 a 201.30 105 25 25 201.5a 160 26 61 DeNoo RoOrn Invert Outlet Devices #1 Primary 201.10' 200 long x 0.5'breadth Broad-Crested Rectangular Wo;r Head(feel)0,20 0.40 0.60 0.80 1.00 Cool,(English)2,80 2.92 3.03 3.30 3.32 02 Discarded 197.25' 0.1701nlhr ExrNrallon(Sandy Loam)over Surface area Conductivity to Groundwater Elevation=197.20' Discarded outflow Max'0.02 cfs a 12.12 hrs HW=201.46' (Free OisChaige) L2=Exfiltratlan(Sandy Loam)(Controls 0.02 cfs) Udmary Outflow Max=12.26 cis @ 12,12 hrs HM201.46'lW-0,00' (Dynamlc Tailwator) #-Broad-crested Rectangular Mir(Vtreir Controls t2.28 cfs(M 1.72 fps) M201047_Hydro_PR-REVS Type 11f 24-hr 100-yrRalnfal1=8.60' M201047 Hydro PR-REVS Type 1d 24-hr 100-yrRalnfarh8.60' Prepared Ey Bohler Printed 8f1012021 Prepared by Bohler Printed 610120211 H dfoCAD910.W-19 s1n 00955 02016 H dmVAd Safhrae Solutions LLC HydraCADS 10 00-19 Un 08955 02016 HVdroCAD Salty-Solutions LLC Pane 54 Pond 213:Infifiration Trench Suntmary for Pond 3P:Cultec Systern-02 llydra9raph fallow Area 35,755 s(,a5.24%ImpeMous, Inflow Depth= 7.88" for 704yf event ' ,;-F r�s z' �hn,. Inflow = 0.81 cis® 12.Ofi hrs,Volume= 23.475 of 93rts 1 - --- --r,'' ' pc�anw Outdoes = 6.79 Osf 2,09 hrs,Volume= 22,909 cf,Atlen=0%,Lag=0.1 min 12.28CfS - - - - - -J. --Jr1HdW Ar6d=116.672$f. b zv' Discarded= 0,03 cis® 12.60hm,Volume= 3,980 of sa f2.26 is I'j-r- - - Primary = 6.76 cis @ 12,09 hrs,Volume= 18.929 of Routing by Dyn-Stor-Ind method,Time Span=0.00-72.00 Ins,d1=0.02 Ins Peak Elev=208.58'012,09 hrs Surf.Area=2.375sf Slofage=3,664cf - . Plug-Flow detention time=266.1 m1n calculated for 22.909 d(88%of Inflow) - _ _ Center-of--Mess riot.lime=274.9 mIn(1,030.6-753.7) Volume Invert Avaii.Store a Storage Descri tion #1A 203,25' 1,686 of 4a.76 W x 64.00'L x 2.54'H Field A 8.005 of Overall-1,781 c1 Embedded=4,214 of x40.046Volds 02A 203,75, 1,791 of Culfec R-160XLHD x65 lnside#1 4 EffeclKa Size=20.e"W x 18.0"H=>2.65 six 10.251-=27.2 of Overall Size=33.0'W x t 8.5"H x 1 t.Dol-with 0.75'Overlap Row Length AMlustmenl=40,75'x2.05 sf x 33 rows #3 201.60' 88 cr 4.00'D x 7.001H OCS-2 a i a e e ioi214 is ta:uh 24Z52s2mma ja Z)44i esl OUe4�atM staff"inu 3,564 or Told Available Storage roe rn=„t Storage Group A created with ChamberiMzard Device Routing fnvert Outlet DWoes 41 Primary 205.35' 15.0"Round Culvert L=35.0' CPP,antlered to canform to htl,Kau 0.700 cruet f Outlet Invert=205.35'f 205.00' S=0,0100 Y Cc-0.900 n=0.013 Corrugated PF,smooth interior,Flow Area-1.23 sf 42 Device 1 205.70' 4.0'long x 0b'breadth Broad-Crested Rectangular Weir Head(feet)0.20 0.40 0.00 0.80 1.00 Coef.(English)180 2.92 3,06 3.30 3.32 43 Device 1 204AT 12.0"Vert.OrificelGrate C=0.600 04 Dlsewded 201,60' 0.1701Mrc ExAltration(Sandy Loam)over Surface ate& Cenductivhy t0 Oroundwater Ffovatina=201-25' pprscarded OutFlow Max=0,03 cis®12.09 hrs HW-208.55' (Free Discharge) ' 4-Exfiltralton f8andy Loam)(Controls 0.03 c(s) e0mary OutFiow Max--6.62 cis Q 12.09 hrs hVJ=208.5T TW-206.94' (Dynamic Teilwater) 'G=Culvert(Inlet Controls 6.62 Us @ 5.39 fps) 2=13road-Crestad Rectangular We[r(Passes<56.00 cis potentla[foyr) 3=0rificefGrate(Posses<4.b0 cis potential tlovi) ] WNW Hydro_PA-REVS Type lit 24-hr 100-yrRainfal1=8.60" M201047 Hydro PR-REV3 Type M24-hr f00-yrRaldaN=-8.50" Prepared 6y Bohler Printed Blto12021 Prepared 6y Bohler printed 6110r2021 H droCAM 0.00-19 srn OB955®2018H draCAD So9vrare solofans LLCPaQO65 H 0CADO 1e.6o-19 On 08955 02016H droCAD Soft are Solutions LLoPage 56 Pond 3P:CuiteC System-02-Chamber Wizard Field A Pond 3P:Cultec Sys[em•02 Chamber Model=CulteC R-160XLHO(Cultec Recharger®150XLHD) Hyd:.graph Effective Size=29,8'W x 18.0"H=>2.65 sf x 10.2SL=27.2 of ' ..Bi_nfs - ' ' ' ' ' ' ' ' ' ' ' ' ' ' a t"^'x overall Size=33.0'Vdx 16.5"H x i 1.00'L whh 0,75'Ovedep yl 6.74 Ms -- --=-r �.'-�-r}-'rl -T-r,-�- pP;':yy Row Length Adjustment=+0,75'x 2.65 sf x 13 rows J�I1�)�W.�if�$�3Sr7$59P_ ©A:,Ky 33,0"SMde+ 7 6,76 cfs -- - -- -- -� NK 00.600.15 i 6,0"Spacing=39.0"C-C Row Spacfng u�' 5 ChamberslRow x 10.25'Lang+0.75'Raw Adjustment=52,00'Row Lenglh+12.0'End Stone x 2= 54,00'88se Length 13 Rom x33,0"Widg+g0'Spacing x12+12.0'SEde Slone x 2=43,75'Rase Width 6.0"Bass+18.5'Chamber Height+6.0'Cover=2.54'Field Height 4 ' -f ,r F�i-f-f l-f-t'-14�i t-f -i-f-, 4-t 85 Chambers X 27,2 cf+6.75'Row Adjustment x 2,65 sf x 13 Rows=1,7t3D.7 cf Chamber Storage 9 6.004.7 cf Field-1,700.7 cf Chambers=4.214.0 cf Slone x 40.0%Voids=1,655.6 cf Stone Starsga r Chamber Storage Stone Storage>3,476.3 cf=o.oso of A s Overall Storage Eh3ctenoy,-57.0% Overall System size=54.00'x 43.75'x 2.64' _ 0]/6 10 is 1at419N#�/:n 1d d0.i1}t]6Nd]dY 4146 c9'AS15938:E di 6sG We9 Tt li 65 Chambers nm.p'0�n1 222A cy Fleld 156.1 cy Stone '.. M20I0417 Rydro_PR•REV3 Type lN24-hr 100-yrRafnfa114.60' Prepared by Bohler Printed 6110rz02'E tiydrOCA€]®1000-18 sh,9s955 2015 HydraCAD Safn6are SalvCbns roc Pa0a 57 Suranlary for Link DP1:DPI Inflow Area 14.672 sf, 83.00:6 impervious,INIrnv Depth= 6,67' for 100-yr event InBaw = 21.29 cis Q 12.11 hrs,Volume= 68,790 W Primary = 21.28 cis @ 12.11 hrs,Volume= 66,790 cf,Men=0%,Lag=0.0 min Primary ou4Sow=Inflow,Time Span=O,M72,00 has,dt=0.02 hrs Link DN:OP 117Mrogruph 33 ' r 21.28 a ri:r�- n �Jf�9an l �i f= - - .......... --1_'T�- - - - -�_•��J_ - -- - -i-F-F --i- -i-F-, i-1-;-F-F ,i-i-i-F- -,-r„i-t-r-r-r-r- 6 ".'"i�_�i_. .. 1 1 2 4 6 61011141618:0�txf�8 x3 at ix 3t 39NWi3<fb9i'A 515r 5658 fi061646dWN1] 16+m Isorrr� i SECTION 2. TEST PIT FIELD INVESTIGATION RESULTS . a I +r.c. \ PLAN oDCLXEXrS Xo CaOsspam OO TO rNSURE TNA T mEPLY ROOTECTREE9 ANOSNRI19SS11AM J NOT 9E P"WED OVFR �p IlfARTORA lk1 BUITSURFACEINFILTRATION I SYSTELFS INACCOROANce WTN _ NO-MANeOVFR 9rTF+uNREvrEW AREO VCTI-RINPARX, SPECIAL ��"'•' % �''` _ �J tY<�J\ � PERXiTCO—rjcN —APPRaVAL _ f TNI9 PLAN TO SEMLISEOFOR �F1 SIT.ORA PURPOSES ONLY. 'GRADING AN ow D <f I,' REFPR TO GENERA!NOT+99HE¢T DAAINACIEPLAN FOR ADDITIONAL ORAOrNOA UTrtiTYNOT+S- \ ` ` i l/